diff --git a/addons/web/static/src/js/chrome/action_manager_act_window.js b/addons/web/static/src/js/chrome/action_manager_act_window.js
index c43044d5457..5667e2d1441 100644
--- a/addons/web/static/src/js/chrome/action_manager_act_window.js
+++ b/addons/web/static/src/js/chrome/action_manager_act_window.js
@@ -59,6 +59,7 @@ ActionManager.include({
      */
     loadState: function (state) {
         var callersArguments = arguments;
+        var _super = this._super.bind(this);
         var self = this;
         var action;
         var def;
@@ -128,7 +129,7 @@ ActionManager.include({
             if (action) {
                 return self.doAction(action, options);
             }
-            return self._super.apply(self, callersArguments);
+            return _super.apply(self, callersArguments);
         });
     },