diff --git a/src/lib/ecore_con/efl_net_dialer.eo b/src/lib/ecore_con/efl_net_dialer.eo
index b1f2afe80c..1b7b2e9c16 100644
--- a/src/lib/ecore_con/efl_net_dialer.eo
+++ b/src/lib/ecore_con/efl_net_dialer.eo
@@ -2,7 +2,7 @@ var Efl.Net.Dialer_Error.COULDNT_CONNECT: Eina.Error; [[The dialer could not con
 var Efl.Net.Dialer_Error.COULDNT_RESOLVE_PROXY: Eina.Error; [[The dialer could not resolve the given proxy server]]
 var Efl.Net.Dialer_Error.PROXY_AUTHENTICATION_FAILED: Eina.Error; [[The dialer failed to authenticate against the proxy server]]
 
-interface Efl.Net.Dialer (Efl.Net.Socket) {
+interface Efl.Net.Dialer extends Efl.Net.Socket {
     [[Creates a client socket to reach a remote peer.
 
       The connection process starts when @.dial is executed. This
diff --git a/src/lib/ecore_con/efl_net_socket.eo b/src/lib/ecore_con/efl_net_socket.eo
index 00394119d1..f8741226ad 100644
--- a/src/lib/ecore_con/efl_net_socket.eo
+++ b/src/lib/ecore_con/efl_net_socket.eo
@@ -1,4 +1,4 @@
-interface Efl.Net.Socket (Efl.Io.Reader, Efl.Io.Writer, Efl.Io.Closer) {
+interface Efl.Net.Socket extends Efl.Io.Reader, Efl.Io.Writer, Efl.Io.Closer {
     [[The basic socket interface.
 
       This is built upon the three core Input/Output interfaces:
diff --git a/src/lib/efl/interfaces/efl_canvas_pointer.eo b/src/lib/efl/interfaces/efl_canvas_pointer.eo
index bb6596500f..45e34f7849 100644
--- a/src/lib/efl/interfaces/efl_canvas_pointer.eo
+++ b/src/lib/efl/interfaces/efl_canvas_pointer.eo
@@ -1,6 +1,6 @@
 import efl_input_device;
 
-interface Efl.Canvas.Pointer ()
+interface Efl.Canvas.Pointer
 {
    [[Efl Canvas Pointer interface]]
    methods {
diff --git a/src/lib/efl/interfaces/efl_canvas_scene.eo b/src/lib/efl/interfaces/efl_canvas_scene.eo
index 1e8703a3a8..ab624be34c 100644
--- a/src/lib/efl/interfaces/efl_canvas_scene.eo
+++ b/src/lib/efl/interfaces/efl_canvas_scene.eo
@@ -1,7 +1,7 @@
 import efl_input_device;
 import efl_gfx_types;
 
-interface Efl.Canvas.Scene ()
+interface Efl.Canvas.Scene
 {
    [[Common interface for window and some internal classes in EFL.]]
    methods {
@@ -17,7 +17,7 @@ interface Efl.Canvas.Scene ()
               much higher one.
 
             ]]
-            return: bool; [[$true on success, $false otherwise]] 
+            return: bool; [[$true on success, $false otherwise]]
          }
          values {
             max: Eina.Size2D; [[The maximum image size (in pixels).]]
@@ -105,7 +105,7 @@ interface Efl.Canvas.Scene ()
            objects, acting only on the ones at the "top level", with
            regard to object parenting.
          ]]
-         return: iterator<Efl.Gfx.Entity> @owned @warn_unused; [[Iterator to objects]] 
+         return: iterator<Efl.Gfx.Entity> @owned @warn_unused; [[Iterator to objects]]
          params {
             @in rect: Eina.Rect; [[The rectangular region.]]
             @in include_pass_events_objects: bool; [[
diff --git a/src/lib/efl/interfaces/efl_config.eo b/src/lib/efl/interfaces/efl_config.eo
index aa19dfad48..f76736ab19 100644
--- a/src/lib/efl/interfaces/efl_config.eo
+++ b/src/lib/efl/interfaces/efl_config.eo
@@ -1,4 +1,4 @@
-interface Efl.Config ()
+interface Efl.Config
 {
    [[A generic configuration interface, that holds key-value pairs.]]
    methods {
diff --git a/src/lib/efl/interfaces/efl_gfx_buffer.eo b/src/lib/efl/interfaces/efl_gfx_buffer.eo
index 09fd93de5a..a4fa28cb98 100644
--- a/src/lib/efl/interfaces/efl_gfx_buffer.eo
+++ b/src/lib/efl/interfaces/efl_gfx_buffer.eo
@@ -12,7 +12,7 @@ enum Efl.Gfx.Buffer_Access_Mode {
 
 /* FIXME: YUV and other planar formats are not properly handled in this API! */
 
-interface Efl.Gfx.Buffer ()
+interface Efl.Gfx.Buffer
 {
    [[Common APIs for all objects representing images and 2D pixel buffers.]]
 
diff --git a/src/lib/efl/interfaces/efl_gfx_gradient_linear.eo b/src/lib/efl/interfaces/efl_gfx_gradient_linear.eo
index b0e7936d1f..ec7a9bfdfd 100644
--- a/src/lib/efl/interfaces/efl_gfx_gradient_linear.eo
+++ b/src/lib/efl/interfaces/efl_gfx_gradient_linear.eo
@@ -1,4 +1,4 @@
-interface Efl.Gfx.Gradient_Linear (Efl.Gfx.Gradient)
+interface Efl.Gfx.Gradient_Linear extends Efl.Gfx.Gradient
 {
    [[Efl graphics gradient linear interface]]
    methods {
diff --git a/src/lib/efl/interfaces/efl_gfx_gradient_radial.eo b/src/lib/efl/interfaces/efl_gfx_gradient_radial.eo
index dbf38c6a37..1b2d6bdf26 100644
--- a/src/lib/efl/interfaces/efl_gfx_gradient_radial.eo
+++ b/src/lib/efl/interfaces/efl_gfx_gradient_radial.eo
@@ -1,4 +1,4 @@
-interface Efl.Gfx.Gradient_Radial (Efl.Gfx.Gradient)
+interface Efl.Gfx.Gradient_Radial extends Efl.Gfx.Gradient
 {
    [[Efl graphics gradient radial interface]]
    methods {
diff --git a/src/lib/efl/interfaces/efl_gfx_image.eo b/src/lib/efl/interfaces/efl_gfx_image.eo
index 8a6e284786..4e8a23cdea 100644
--- a/src/lib/efl/interfaces/efl_gfx_image.eo
+++ b/src/lib/efl/interfaces/efl_gfx_image.eo
@@ -21,26 +21,26 @@ enum Efl.Gfx.Image_Scale_Hint
 enum Efl.Gfx.Image_Scale_Type
 {
    [[Enumeration that defines scale types of an image.]]
-   fill,        [[Scale the image so that it matches 
+   fill,        [[Scale the image so that it matches
                   the object's area exactly.
                   The image's aspect ratio might be changed.]]
    fit_inside,  [[Scale the image
                   so that it fits inside the object's area
                   while maintaining the aspect ratio.
                   At least one of the dimensions of the image
-                  should be equal to the corresponding dimension 
+                  should be equal to the corresponding dimension
                   of the object.]]
    fit_outside, [[Scale the image
                   so that it covers the entire object area
                   while maintaining the aspect ratio.
                   At least one of the dimensions of the image
-                  should be equal to the corresponding 
+                  should be equal to the corresponding
                   dimension of the object.]]
    tile,        [[Tile image at its original size.]]
    none         [[Not scale the image]]
 }
 
-interface Efl.Gfx.Image ()
+interface Efl.Gfx.Image
 {
    [[Common APIs for all 2D images that can be rendered on the canvas.]]
 
diff --git a/src/lib/efl/interfaces/efl_gfx_image_animation_controller.eo b/src/lib/efl/interfaces/efl_gfx_image_animation_controller.eo
index 54560e6d7e..ef11fe6d4d 100644
--- a/src/lib/efl/interfaces/efl_gfx_image_animation_controller.eo
+++ b/src/lib/efl/interfaces/efl_gfx_image_animation_controller.eo
@@ -10,7 +10,7 @@ enum Efl.Gfx.Image_Animation_Controller_Loop_Hint {
 
 /* FIXME: rename to Efl.Gfx.Image_Animation_Controller when eo/eolian are fixed */
 
-interface Efl.Gfx.Image_Animation_Controller ()
+interface Efl.Gfx.Image_Animation_Controller
 {
    [[Efl animated image interface]]
    eo_prefix: efl_gfx_image;
diff --git a/src/lib/efl/interfaces/efl_gfx_image_load_controller.eo b/src/lib/efl/interfaces/efl_gfx_image_load_controller.eo
index 89a065b442..66ae1d4085 100644
--- a/src/lib/efl/interfaces/efl_gfx_image_load_controller.eo
+++ b/src/lib/efl/interfaces/efl_gfx_image_load_controller.eo
@@ -13,7 +13,7 @@ enum Efl.Gfx.Image_Load_Controller_State
 }
 */
 
-interface Efl.Gfx.Image_Load_Controller ()
+interface Efl.Gfx.Image_Load_Controller
 {
    [[Common APIs for all loadable 2D images.]]
 
diff --git a/src/lib/efl/interfaces/efl_interpolator.eo b/src/lib/efl/interfaces/efl_interpolator.eo
index 4c25d9c026..870582ab6f 100644
--- a/src/lib/efl/interfaces/efl_interpolator.eo
+++ b/src/lib/efl/interfaces/efl_interpolator.eo
@@ -1,4 +1,4 @@
-interface Efl.Interpolator ()
+interface Efl.Interpolator
 {
    [[Efl interpolator interface]]
    methods {
diff --git a/src/lib/efl/interfaces/efl_model.eo b/src/lib/efl/interfaces/efl_model.eo
index dc7b0de4cb..72de91d809 100644
--- a/src/lib/efl/interfaces/efl_model.eo
+++ b/src/lib/efl/interfaces/efl_model.eo
@@ -13,7 +13,7 @@ struct Efl.Model_Children_Event {
                           the parent, it will be available here.]]
 }
 
-interface Efl.Model ()
+interface Efl.Model
 {
    [[Efl model interface]]
    eo_prefix: efl_model;
diff --git a/src/lib/efl/interfaces/efl_pack.eo b/src/lib/efl/interfaces/efl_pack.eo
index 6da85cb8fd..0b8f1d670f 100644
--- a/src/lib/efl/interfaces/efl_pack.eo
+++ b/src/lib/efl/interfaces/efl_pack.eo
@@ -1,4 +1,4 @@
-interface Efl.Pack (Efl.Container)
+interface Efl.Pack extends Efl.Container
 {
    [[API common to all UI container objects.]]
    methods
diff --git a/src/lib/efl/interfaces/efl_pack_layout.eo b/src/lib/efl/interfaces/efl_pack_layout.eo
index caf5548efd..cdc593b031 100644
--- a/src/lib/efl/interfaces/efl_pack_layout.eo
+++ b/src/lib/efl/interfaces/efl_pack_layout.eo
@@ -1,4 +1,4 @@
-interface Efl.Pack_Layout ()
+interface Efl.Pack_Layout
 {
    [[Low-level APIs for object that can lay their children out.
 
diff --git a/src/lib/efl/interfaces/efl_pack_linear.eo b/src/lib/efl/interfaces/efl_pack_linear.eo
index d9bb90234c..5829c73d27 100644
--- a/src/lib/efl/interfaces/efl_pack_linear.eo
+++ b/src/lib/efl/interfaces/efl_pack_linear.eo
@@ -1,4 +1,4 @@
-interface Efl.Pack_Linear (Efl.Pack)
+interface Efl.Pack_Linear extends Efl.Pack
 {
    [[API for containers ]]
    eo_prefix: efl_pack;
diff --git a/src/lib/efl/interfaces/efl_pack_table.eo b/src/lib/efl/interfaces/efl_pack_table.eo
index 33323ac5ae..6b0bfd8b6e 100644
--- a/src/lib/efl/interfaces/efl_pack_table.eo
+++ b/src/lib/efl/interfaces/efl_pack_table.eo
@@ -1,6 +1,6 @@
 import efl_ui_direction;
 
-interface Efl.Pack_Table (Efl.Pack_Linear)
+interface Efl.Pack_Table extends Efl.Pack_Linear
 {
    [[2D containers aligned on a table with rows and columns]]
    eo_prefix: efl_pack;
diff --git a/src/lib/efl/interfaces/efl_text_markup.eo b/src/lib/efl/interfaces/efl_text_markup.eo
index 1fbfd70b35..97de5672b4 100644
--- a/src/lib/efl/interfaces/efl_text_markup.eo
+++ b/src/lib/efl/interfaces/efl_text_markup.eo
@@ -1,4 +1,4 @@
-interface Efl.Text_Markup(Efl.Text_Cursor) {
+interface Efl.Text_Markup extends Efl.Text_Cursor {
    [[Markup data that populates the text object's style and format
 
      @since 1.21
diff --git a/src/lib/efl/interfaces/efl_ui_clickable.eo b/src/lib/efl/interfaces/efl_ui_clickable.eo
index 15c7e27a27..869d5e3650 100644
--- a/src/lib/efl/interfaces/efl_ui_clickable.eo
+++ b/src/lib/efl/interfaces/efl_ui_clickable.eo
@@ -1,4 +1,4 @@
-interface Efl.Ui.Clickable ()
+interface Efl.Ui.Clickable
 {
    [[Efl UI clickable interface]]
    event_prefix: efl_ui;
diff --git a/src/lib/efl/interfaces/efl_ui_draggable.eo b/src/lib/efl/interfaces/efl_ui_draggable.eo
index e38e7f4416..a202a3e434 100644
--- a/src/lib/efl/interfaces/efl_ui_draggable.eo
+++ b/src/lib/efl/interfaces/efl_ui_draggable.eo
@@ -1,5 +1,5 @@
 /* FIXME: Edje Drag and this Dnd Draggable have confusingly similar names! */
-interface Efl.Ui.Draggable ()
+interface Efl.Ui.Draggable
 {
    [[Efl UI draggable interface]]
    event_prefix: efl_ui;
diff --git a/src/lib/efl/interfaces/efl_ui_factory.eo b/src/lib/efl/interfaces/efl_ui_factory.eo
index b7848744de..45be8aab80 100644
--- a/src/lib/efl/interfaces/efl_ui_factory.eo
+++ b/src/lib/efl/interfaces/efl_ui_factory.eo
@@ -4,7 +4,7 @@ struct Efl.Ui.Factory_Item_Created_Event {
    item: Efl.Gfx.Entity; [[The item that was just created.]]
 }
 
-interface Efl.Ui.Factory (Efl.Ui.Model.Connect)
+interface Efl.Ui.Factory extends Efl.Ui.Model.Connect
 {
    [[Efl UI factory interface]]
    methods {
diff --git a/src/lib/efl/interfaces/efl_ui_multi_selectable.eo b/src/lib/efl/interfaces/efl_ui_multi_selectable.eo
index 8e82750441..f8a95afeed 100644
--- a/src/lib/efl/interfaces/efl_ui_multi_selectable.eo
+++ b/src/lib/efl/interfaces/efl_ui_multi_selectable.eo
@@ -9,7 +9,7 @@ enum Efl.Ui.Select_Mode {
    none [[Last value of select mode. child cannot be selected at all.]]
 }
 
-interface Efl.Ui.Multi_Selectable ()
+interface Efl.Ui.Multi_Selectable
 {
    [[Efl UI Multi selectable interface.
      The container have to control select property of multiple chidren.]]
diff --git a/src/lib/efl/interfaces/efl_ui_scrollable.eo b/src/lib/efl/interfaces/efl_ui_scrollable.eo
index 2f6d0a1053..b1284e5cd6 100644
--- a/src/lib/efl/interfaces/efl_ui_scrollable.eo
+++ b/src/lib/efl/interfaces/efl_ui_scrollable.eo
@@ -12,7 +12,7 @@ enum Efl.Ui.Scroll_Block
    horizontal = 2 [[Block horizontal movement.]]
 }
 
-interface Efl.Ui.Scrollable ()
+interface Efl.Ui.Scrollable
 {
    [[Efl UI scrollable interface]]
    event_prefix: efl_ui;
diff --git a/src/lib/efl/interfaces/efl_ui_scrollable_interactive.eo b/src/lib/efl/interfaces/efl_ui_scrollable_interactive.eo
index 5595374775..7499bc7b91 100644
--- a/src/lib/efl/interfaces/efl_ui_scrollable_interactive.eo
+++ b/src/lib/efl/interfaces/efl_ui_scrollable_interactive.eo
@@ -1,6 +1,6 @@
 import eina_types;
 
-interface Efl.Ui.Scrollable_Interactive (Efl.Ui.Scrollable)
+interface Efl.Ui.Scrollable_Interactive extends Efl.Ui.Scrollable
 {
    eo_prefix: efl_ui_scrollable;
    methods {
diff --git a/src/lib/efl/interfaces/efl_ui_scrollbar.eo b/src/lib/efl/interfaces/efl_ui_scrollbar.eo
index 2e2f0d08df..46e1bad5fe 100644
--- a/src/lib/efl/interfaces/efl_ui_scrollbar.eo
+++ b/src/lib/efl/interfaces/efl_ui_scrollbar.eo
@@ -12,7 +12,7 @@ enum Efl.Ui.Scrollbar_Direction
    vertical,
    last
 }
-interface Efl.Ui.Scrollbar ()
+interface Efl.Ui.Scrollbar
 {
    methods {
       @property bar_mode {
diff --git a/src/lib/efl/interfaces/efl_ui_selectable.eo b/src/lib/efl/interfaces/efl_ui_selectable.eo
index 3f98ddf4f9..2d67ac018f 100644
--- a/src/lib/efl/interfaces/efl_ui_selectable.eo
+++ b/src/lib/efl/interfaces/efl_ui_selectable.eo
@@ -1,4 +1,4 @@
-interface Efl.Ui.Selectable ()
+interface Efl.Ui.Selectable
 {
    [[Efl UI selectable interface]]
    event_prefix: efl_ui;
diff --git a/src/lib/efl/interfaces/efl_ui_view.eo b/src/lib/efl/interfaces/efl_ui_view.eo
index 418a16b749..144b2fa660 100644
--- a/src/lib/efl/interfaces/efl_ui_view.eo
+++ b/src/lib/efl/interfaces/efl_ui_view.eo
@@ -1,4 +1,4 @@
-interface Efl.Ui.View ()
+interface Efl.Ui.View
 {
    [[Efl UI view interface]]
    methods {
diff --git a/src/lib/efl/interfaces/efl_ui_zoom.eo b/src/lib/efl/interfaces/efl_ui_zoom.eo
index bc37073a53..7e5e58b495 100644
--- a/src/lib/efl/interfaces/efl_ui_zoom.eo
+++ b/src/lib/efl/interfaces/efl_ui_zoom.eo
@@ -9,7 +9,7 @@ enum Efl.Ui.Zoom_Mode
    last [[Sentinel value to indicate last enum field during iteration]]
 }
 
-interface Efl.Ui.Zoom ()
+interface Efl.Ui.Zoom
 {
    [[Efl UI zoom interface]]
    event_prefix: efl_ui;
diff --git a/src/lib/elementary/efl_access_editable_text.eo b/src/lib/elementary/efl_access_editable_text.eo
index a1ec68f9c2..126d8f7821 100644
--- a/src/lib/elementary/efl_access_editable_text.eo
+++ b/src/lib/elementary/efl_access_editable_text.eo
@@ -1,4 +1,4 @@
-interface Efl.Access.Editable.Text ()
+interface Efl.Access.Editable.Text
 {
    [[Elementary editable text interface]]
    methods {
diff --git a/src/lib/elementary/efl_access_selection.eo b/src/lib/elementary/efl_access_selection.eo
index 82e3202109..ca9c4f085b 100644
--- a/src/lib/elementary/efl_access_selection.eo
+++ b/src/lib/elementary/efl_access_selection.eo
@@ -1,4 +1,4 @@
-interface Efl.Access.Selection ()
+interface Efl.Access.Selection
 {
    [[Elementary access selection interface]]
    methods {
diff --git a/src/lib/elementary/efl_access_text.eo b/src/lib/elementary/efl_access_text.eo
index c4b616d57e..45e373bc6c 100644
--- a/src/lib/elementary/efl_access_text.eo
+++ b/src/lib/elementary/efl_access_text.eo
@@ -44,7 +44,7 @@ struct Efl.Access.Text_Change_Info
    len: size; [[Change length]]
 }
 
-interface Efl.Access.Text ()
+interface Efl.Access.Text
 {
    [[Elementary accessible text interface]]
    methods {
diff --git a/src/lib/elementary/efl_access_value.eo b/src/lib/elementary/efl_access_value.eo
index 703f18b84b..43d6d219b8 100644
--- a/src/lib/elementary/efl_access_value.eo
+++ b/src/lib/elementary/efl_access_value.eo
@@ -1,4 +1,4 @@
-interface Efl.Access.Value ()
+interface Efl.Access.Value
 {
    [[Elementary Access value interface]]
    methods {
diff --git a/src/lib/elementary/efl_access_window.eo b/src/lib/elementary/efl_access_window.eo
index bc91e3494e..320fb8ace6 100644
--- a/src/lib/elementary/efl_access_window.eo
+++ b/src/lib/elementary/efl_access_window.eo
@@ -1,4 +1,4 @@
-interface Efl.Access.Window ()
+interface Efl.Access.Window
 {
    [[Elementary accessible window interface]]
    events {
diff --git a/src/lib/elementary/efl_text_interactive.eo b/src/lib/elementary/efl_text_interactive.eo
index 61e336f00c..0cb4d6f766 100644
--- a/src/lib/elementary/efl_text_interactive.eo
+++ b/src/lib/elementary/efl_text_interactive.eo
@@ -1,7 +1,7 @@
 import efl_text_types;
 
-interface Efl.Text_Interactive (Efl.Text, Efl.Text_Font,
-   Efl.Text_Format, Efl.Text_Style)
+interface Efl.Text_Interactive extends Efl.Text, Efl.Text_Font,
+   Efl.Text_Format, Efl.Text_Style
 {
    [[This is an interface interactive text inputs should implement]]
    methods {
diff --git a/src/lib/elementary/efl_ui_cursor.eo b/src/lib/elementary/efl_ui_cursor.eo
index 3455dc0d60..a172e533f7 100644
--- a/src/lib/elementary/efl_ui_cursor.eo
+++ b/src/lib/elementary/efl_ui_cursor.eo
@@ -1,4 +1,4 @@
-interface Efl.Ui.Cursor ()
+interface Efl.Ui.Cursor
 {
    [[An interface to define mouse cursors to use when hovering
      over UI widgets.
diff --git a/src/lib/elementary/efl_ui_legacy.eo b/src/lib/elementary/efl_ui_legacy.eo
index 301bcdc837..f4cba24d9c 100644
--- a/src/lib/elementary/efl_ui_legacy.eo
+++ b/src/lib/elementary/efl_ui_legacy.eo
@@ -1,4 +1,4 @@
-interface Efl.Ui.Legacy (Efl.Interface)
+interface Efl.Ui.Legacy extends Efl.Interface
 {
    [[The bg (background) widget is used for setting (solid) background decorations
 
diff --git a/src/lib/elementary/efl_ui_list_view_model.eo b/src/lib/elementary/efl_ui_list_view_model.eo
index 12a289a448..0a511e2de5 100644
--- a/src/lib/elementary/efl_ui_list_view_model.eo
+++ b/src/lib/elementary/efl_ui_list_view_model.eo
@@ -1,6 +1,6 @@
 import efl_ui_list_view_types;
 
-interface Efl.Ui.List_View_Model (Efl.Interface)
+interface Efl.Ui.List_View_Model extends Efl.Interface
 {
    methods {
       @property load_range {
diff --git a/src/lib/elementary/efl_ui_list_view_relayout.eo b/src/lib/elementary/efl_ui_list_view_relayout.eo
index e5359b79d5..52cd23d577 100644
--- a/src/lib/elementary/efl_ui_list_view_relayout.eo
+++ b/src/lib/elementary/efl_ui_list_view_relayout.eo
@@ -1,4 +1,4 @@
-interface Efl.Ui.List_View_Relayout (Efl.Interface)
+interface Efl.Ui.List_View_Relayout extends Efl.Interface
 {
    methods {
       layout_do {
diff --git a/src/lib/elementary/elm_interface_fileselector.eo b/src/lib/elementary/elm_interface_fileselector.eo
index fb35f6264a..8721c45a2e 100644
--- a/src/lib/elementary/elm_interface_fileselector.eo
+++ b/src/lib/elementary/elm_interface_fileselector.eo
@@ -25,7 +25,7 @@ enum Elm.Fileselector.Sort
    last [[Sentinel value to indicate last enum field during iteration]]
 }
 
-interface Elm.Interface.Fileselector (Efl.Ui.View)
+interface Elm.Interface.Fileselector extends Efl.Ui.View
 {
    [[Elementary fileselector interface]]
    eo_prefix: elm_interface_fileselector;
diff --git a/src/lib/evas/canvas/efl_canvas_text_factory.eo b/src/lib/evas/canvas/efl_canvas_text_factory.eo
index 772521a408..6f55935015 100644
--- a/src/lib/evas/canvas/efl_canvas_text_factory.eo
+++ b/src/lib/evas/canvas/efl_canvas_text_factory.eo
@@ -1,4 +1,4 @@
-interface Efl.Canvas.Text_Factory ()
+interface Efl.Canvas.Text_Factory
 {
    [[Object factory that creates Efl.Canvas.Object objects.
 
diff --git a/src/lib/evas/canvas/efl_input_interface.eo b/src/lib/evas/canvas/efl_input_interface.eo
index 7d9df41025..48bf1bb81e 100644
--- a/src/lib/evas/canvas/efl_input_interface.eo
+++ b/src/lib/evas/canvas/efl_input_interface.eo
@@ -1,4 +1,4 @@
-interface Efl.Input.Interface ()
+interface Efl.Input.Interface
 {
    [[An object implementing this interface can send pointer events.
 
diff --git a/src/lib/evas/canvas/efl_input_state.eo b/src/lib/evas/canvas/efl_input_state.eo
index 19f5c18f53..f3dc8354b8 100644
--- a/src/lib/evas/canvas/efl_input_state.eo
+++ b/src/lib/evas/canvas/efl_input_state.eo
@@ -1,6 +1,6 @@
 import efl_input_types;
 
-interface Efl.Input.State ()
+interface Efl.Input.State
 {
    [[Efl input state interface]]
    eo_prefix: efl_input;
diff --git a/src/tests/efl_mono/dummy_another_iface.eo b/src/tests/efl_mono/dummy_another_iface.eo
index 6c4376e4bc..84c9187f05 100644
--- a/src/tests/efl_mono/dummy_another_iface.eo
+++ b/src/tests/efl_mono/dummy_another_iface.eo
@@ -1,4 +1,4 @@
-interface Dummy.Another_Iface ()
+interface Dummy.Another_Iface
 {
    methods {
       emit_another_conflicted {
diff --git a/src/tests/efl_mono/dummy_test_iface.eo b/src/tests/efl_mono/dummy_test_iface.eo
index 9cad4c41c2..d9d29ac749 100644
--- a/src/tests/efl_mono/dummy_test_iface.eo
+++ b/src/tests/efl_mono/dummy_test_iface.eo
@@ -1,4 +1,4 @@
-interface Dummy.Test_Iface ()
+interface Dummy.Test_Iface
 {
    methods {
       emit_test_conflicted {