diff --git a/js/ui/windowAttentionHandler.js b/js/ui/windowAttentionHandler.js
index abdb8a444..a9a7111ba 100644
--- a/js/ui/windowAttentionHandler.js
+++ b/js/ui/windowAttentionHandler.js
@@ -69,8 +69,6 @@ var Source = class WindowAttentionSource extends MessageTray.Source {
                                                  () => { this.destroy(); }));
         this.signalIDs.push(this._window.connect('unmanaged',
                                                  () => { this.destroy(); }));
-
-        this.connect('destroy', this._onDestroy.bind(this));
     }
 
     _sync() {
@@ -79,13 +77,6 @@ var Source = class WindowAttentionSource extends MessageTray.Source {
         this.destroy();
     }
 
-    _onDestroy() {
-        for(let i = 0; i < this.signalIDs.length; i++) {
-           this._window.disconnect(this.signalIDs[i]);
-        }
-        this.signalIDs = [];
-    }
-
     _createPolicy() {
         if (this._app && this._app.get_app_info()) {
             let id = this._app.get_id().replace(/\.desktop$/,'');
@@ -99,6 +90,14 @@ var Source = class WindowAttentionSource extends MessageTray.Source {
         return this._app.create_icon_texture(size);
     }
 
+    destroy(params) {
+        for (let i = 0; i < this.signalIDs.length; i++)
+            this._window.disconnect(this.signalIDs[i]);
+        this.signalIDs = [];
+
+        super.destroy(params);
+    }
+
     open() {
         Main.activateWindow(this._window);
     }