--- a/suite/common/pref/pref-applicationManager.js
+++ b/suite/common/pref/pref-applicationManager.js
@@ -1,15 +1,17 @@
 /* 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/. */
 
 // As pref-applications.js is always loaded, we can (and should!) reuse
 // the nsI* constants from there, if needed also any services we need.
 
+Components.utils.import("resource://gre/modules/Services.jsm");
+
 var gAppManagerDialog = {
   _removed: [],
 
   init: function appManager_init() {
     this.handlerInfo = window.arguments[0];
 
     var bundle = document.getElementById("appManagerBundle");
     var contentText;