diff --git a/IPython/html/static/widgets/js/manager.js b/IPython/html/static/widgets/js/manager.js
index f8e951a..38626c8 100644
--- a/IPython/html/static/widgets/js/manager.js
+++ b/IPython/html/static/widgets/js/manager.js
@@ -4,8 +4,9 @@
define([
"underscore",
"backbone",
+ "jquery",
"base/js/namespace"
-], function (_, Backbone, IPython) {
+], function (_, Backbone, $, IPython) {
//--------------------------------------------------------------------
// WidgetManager class