diff --git a/IPython/html/templates/notebook.html b/IPython/html/templates/notebook.html
index 7d05482..45d3e29 100644
--- a/IPython/html/templates/notebook.html
+++ b/IPython/html/templates/notebook.html
@@ -291,6 +291,7 @@ class="notebook_app"
 <script src="{{ static_url("notebook/js/pager.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{ static_url("notebook/js/menubar.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{ static_url("notebook/js/toolbar.js") }}" type="text/javascript" charset="utf-8"></script>
+<script src="{{ static_url("notebook/js/widget.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{ static_url("notebook/js/maintoolbar.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{ static_url("notebook/js/notebook.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{ static_url("notebook/js/keyboardmanager.js") }}" type="text/javascript" charset="utf-8"></script>
diff --git a/IPython/html/templates/page.html b/IPython/html/templates/page.html
index 5bef21d..25539ca 100644
--- a/IPython/html/templates/page.html
+++ b/IPython/html/templates/page.html
@@ -71,6 +71,8 @@
 <script src="{{static_url("components/jquery/jquery.min.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{static_url("components/jquery-ui/ui/minified/jquery-ui.min.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{static_url("components/bootstrap/bootstrap/js/bootstrap.min.js") }}" type="text/javascript" charset="utf-8"></script>
+<script src="{{static_url("components/underscore/underscore-min.js") }}" type="text/javascript" charset="utf-8"></script>
+<script src="{{static_url("components/backbone/backbone-min.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{static_url("base/js/namespace.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{static_url("base/js/page.js") }}" type="text/javascript" charset="utf-8"></script>
 <script src="{{static_url("auth/js/loginwidget.js") }}" type="text/javascript" charset="utf-8"></script>