diff --git a/dev/js/src/default.js b/dev/js/src/default.js
index 905751c..344feac 100644
--- a/dev/js/src/default.js
+++ b/dev/js/src/default.js
@@ -1,4 +1,5 @@
 require([
   "hint/foundries/base",
+  "hint/foundries/ud",
   "hint/foundries/dereko"
 ]);