diff --git a/src/lib/ector/cairo/ector_cairo_surface.eo b/src/lib/ector/cairo/ector_cairo_surface.eo
index 4fce1f6a8d..9a89238e8c 100644
--- a/src/lib/ector/cairo/ector_cairo_surface.eo
+++ b/src/lib/ector/cairo/ector_cairo_surface.eo
@@ -1,4 +1,4 @@
-type @extern cairo_t: void_ptr;
+type @extern cairo_t: void_ptr; [[cairo_t type]]
 
 class Ector.Cairo.Surface (Efl.Object, Ector.Surface)
 {
diff --git a/src/lib/ector/ector_types.eot b/src/lib/ector/ector_types.eot
index c142a6a513..1e1a96bd1c 100644
--- a/src/lib/ector/ector_types.eot
+++ b/src/lib/ector/ector_types.eot
@@ -1,2 +1,2 @@
-type @extern GLshort: short; /* FIXME: We should not expose this in the API but probably redefine it. */
+type @extern GLshort: short; [[GLshort type]] /* FIXME: We should not expose this in the API but probably redefine it. */
 
diff --git a/src/lib/efl/interfaces/efl_text_properties.eo b/src/lib/efl/interfaces/efl_text_properties.eo
index 5ca3790954..3383fa444f 100644
--- a/src/lib/efl/interfaces/efl_text_properties.eo
+++ b/src/lib/efl/interfaces/efl_text_properties.eo
@@ -1,4 +1,4 @@
-type Efl_Font_Size: int;
+type Efl_Font_Size: int; [[Efl font size type]]
 
 interface Efl.Text.Properties
 {
diff --git a/src/lib/eio/eio_model.eo b/src/lib/eio/eio_model.eo
index bc4d4b69af..48d11634fe 100644
--- a/src/lib/eio/eio_model.eo
+++ b/src/lib/eio/eio_model.eo
@@ -1,4 +1,4 @@
-type @extern Eio_Filter_Direct_Cb: __undefined_type;
+type @extern Eio_Filter_Direct_Cb: __undefined_type; [[Eio filter direct callback type]]
 
 class Eio.Model (Efl.Object, Efl.Model)
 {
diff --git a/src/lib/eo/eina_types.eot b/src/lib/eo/eina_types.eot
index fcc0c814c3..c1d2243b2f 100644
--- a/src/lib/eo/eina_types.eot
+++ b/src/lib/eo/eina_types.eot
@@ -26,7 +26,7 @@ struct @extern Eina.Matrix3 {
 
 struct @extern Eina.Inarray; [[Eina inarray data structure]]
 
-type @extern Eina.Unicode: uint32;
+type @extern Eina.Unicode: uint32; [[Eina unicode type]]
 
 struct @extern Eina.File.Direct.Info; [[Eina file direct information data structure]]
 /*{
@@ -44,7 +44,7 @@ enum @extern Eina.Xattr.Flags {
   created [[This will only succeed if the extended attribute wasn't previously set]]
 }
 
-type @extern Eina.Error: int;
+type @extern Eina.Error: int; [[Eina error type]]
 
 struct @extern @free(eina_binbuf_free) Eina.Binbuf; [[Eina binbuf data structure]]