diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 548d5d4df..81ccb54ea 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -1225,6 +1225,6 @@ const LoginDialog = new Lang.Class({
     close: function() {
         this.parent();
 
-        Main.ctrlAltTabManager.removeGroup(this._group);
+        Main.ctrlAltTabManager.removeGroup(this.dialogLayout);
     }
 });