diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index 563e43da4..bb7835c0e 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -470,6 +470,7 @@ var WorkspacesDisplay = new Lang.Class({
         this._switchWorkspaceNotifyId = 0;
 
         this._notifyOpacityId = 0;
+        this._restackedNotifyId = 0;
         this._scrollEventId = 0;
         this._keyPressEventId = 0;