diff --git a/extensions/apps-menu/extension.js b/extensions/apps-menu/extension.js
index 94295344..8668b59f 100644
--- a/extensions/apps-menu/extension.js
+++ b/extensions/apps-menu/extension.js
@@ -494,7 +494,6 @@ const ApplicationsButton = new Lang.Class({
     _onDestroy: function() {
         Main.overview.disconnect(this._showingId);
         Main.overview.disconnect(this._hidingId);
-        Main.layoutManager.disconnect(this._panelBoxChangedId);
         appSys.disconnect(this._installedChangedId);
 
         Main.wm.setCustomKeybindingHandler('panel-main-menu',