diff --git a/addons/gamification/static/src/js/gamification.js b/addons/gamification/static/src/js/gamification.js
index 2a8db5f369d..ac42561491f 100644
--- a/addons/gamification/static/src/js/gamification.js
+++ b/addons/gamification/static/src/js/gamification.js
@@ -126,7 +126,7 @@ openerp.gamification = function(instance) {
         }
     });
 
-    instance.mail.Widget.include({
+    instance.mail.Wall.include({
         start: function() {
             this._super();
             var sidebar = new instance.gamification.Sidebar(this);