diff --git a/notebook/static/base/js/utils.js b/notebook/static/base/js/utils.js
index d53b219ec..fc3da3edf 100644
--- a/notebook/static/base/js/utils.js
+++ b/notebook/static/base/js/utils.js
@@ -842,6 +842,7 @@ define([
     };
     
     var utils = {
+        load_extension: load_extension,
         load_extensions: load_extensions,
         load_extensions_from_config: load_extensions_from_config,
         regex_split : regex_split,