diff --git a/src/static/js/broadcast_slider.js b/src/static/js/broadcast_slider.js
index 45f8cfe8d..05bf9df18 100644
--- a/src/static/js/broadcast_slider.js
+++ b/src/static/js/broadcast_slider.js
@@ -25,6 +25,7 @@
 var _ = require('./underscore');
 var padmodals = require('./pad_modals').padmodals;
 var sliderui = require('./sliderui');
+require('./jquery.class');
 
 $.Class("RevisionSlider",
   {//statics