diff --git a/js/lib/chatzilla-protocol-script.js b/js/lib/chatzilla-protocol-script.js
--- a/js/lib/chatzilla-protocol-script.js
+++ b/js/lib/chatzilla-protocol-script.js
@@ -1,11 +1,10 @@
 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 const { utils: Cu } = Components;
 
-Cu.import("chrome://chatzilla/content/lib/js/protocol-handlers.jsm");
-/* global ChatZillaProtocols */
+let { ChatZillaProtocols } = Cu.import("chrome://chatzilla/content/lib/js/protocol-handlers.jsm", {});
 
 ChatZillaProtocols.init();