diff --git a/Objective-J/Bootstrap.js b/Objective-J/Bootstrap.js
index 3ed56821d..3ea3fe515 100644
--- a/Objective-J/Bootstrap.js
+++ b/Objective-J/Bootstrap.js
@@ -22,7 +22,7 @@
 
 
 #ifdef COMMONJS
-var mainBundleURL = new CFURL("file:" + require("file").cwd());
+var mainBundleURL = new CFURL("file:" + require("file").cwd()).asDirectoryPathURL();
 #elif defined(BROWSER)
 // This is automatic when importing, but we'd like these important URLs to
 // be taken into consideration in the cache as well.