diff --git a/registry.json b/registry.json
index 1718a75..a218b37 100644
--- a/registry.json
+++ b/registry.json
@@ -1,6 +1,7 @@
 {
   "angular": "cdnjs:angular.js/{version}#angular",
   "angular-ui": "cdnjs:angular-ui/{version}#angular-ui",
+  "backbone": "github:jashkenas/backbone",
   "bootstrap": "github:twbs/bootstrap",
   "jquery": "github:components/jquery",
   "webfont": "cdnjs:webfont/1.3.0#webfont"