diff --git a/legacy/elementary/data/themes/widgets/panes.edc b/legacy/elementary/data/themes/widgets/panes.edc
index aec229c12a..9e5cb7b5dc 100644
--- a/legacy/elementary/data/themes/widgets/panes.edc
+++ b/legacy/elementary/data/themes/widgets/panes.edc
@@ -446,7 +446,7 @@ group { name: "elm/panes/vertical/default";
       //fix the pane
       program {
          name: "panes_fixed";
-         signal: "elm.panes.fixed";
+         signal: "elm,panes,fixed";
          source: "elm";
          action: STATE_SET "disabled" 0.0;
          target: "elm.bar";
@@ -456,7 +456,7 @@ group { name: "elm/panes/vertical/default";
       //allow the movement by interaction
       program {
          name: "panes_unfixed";
-         signal: "elm.panes.unfixed";
+         signal: "elm,panes,unfixed";
          source: "elm";
          action: STATE_SET "default" 0.0;
          target: "elm.bar";
@@ -779,7 +779,7 @@ group { name: "elm/panes/horizontal/default";
       //fix the pane
       program {
          name:   "panes_fixed";
-         signal: "elm.panes.fixed";
+         signal: "elm,panes,fixed";
          source: "elm";
          action: STATE_SET "disabled" 0.0;
          target: "elm.bar";
@@ -789,7 +789,7 @@ group { name: "elm/panes/horizontal/default";
       //allow the movement by interaction
       program {
          name:   "panes_unfixed";
-         signal: "elm.panes.unfixed";
+         signal: "elm,panes,unfixed";
          source: "elm";
          action: STATE_SET "default" 0.0;
          target: "elm.bar";
diff --git a/legacy/elementary/src/lib/elm_panes.c b/legacy/elementary/src/lib/elm_panes.c
index a28ab52f0d..e6d3946e75 100644
--- a/legacy/elementary/src/lib/elm_panes.c
+++ b/legacy/elementary/src/lib/elm_panes.c
@@ -57,7 +57,14 @@ _elm_panes_smart_theme(Eo *obj, void *_pd, va_list *list)
 
    size = elm_panes_content_left_size_get(obj);
 
-   if (sd->fixed) elm_layout_signal_emit(obj, "elm.panes.fixed", "elm");
+   if (sd->fixed)
+     {
+        elm_layout_signal_emit(obj, "elm,panes,fixed", "elm");
+
+        //TODO: remove this signal on EFL 2.0.
+        // I left this due to the backward compatibility.
+        elm_layout_signal_emit(obj, "elm.panes.fixed", "elm");
+     }
 
    elm_layout_sizing_eval(obj);
 
@@ -395,9 +402,21 @@ _elm_panes_smart_fixed_set(Eo *obj, void *_pd, va_list *list)
 
    sd->fixed = !!fixed;
    if (sd->fixed == EINA_TRUE)
-     elm_layout_signal_emit(obj, "elm.panes.fixed", "elm");
+     {
+        elm_layout_signal_emit(obj, "elm,panes,fixed", "elm");
+
+        //TODO: remove this signal on EFL 2.0.
+        // I left this due to the backward compatibility.
+        elm_layout_signal_emit(obj, "elm.panes.fixed", "elm");
+     }
    else
-     elm_layout_signal_emit(obj, "elm.panes.unfixed", "elm");
+     {
+        elm_layout_signal_emit(obj, "elm,panes,unfixed", "elm");
+
+        //TODO: remove this signal on EFL 2.0.
+        // I left this due to the backward compatibility.
+        elm_layout_signal_emit(obj, "elm.panes.unfixed", "elm");
+     }
 }
 
 EAPI Eina_Bool