diff --git a/lib/bundle.js b/lib/bundle.js
index 1c5701e3b..963f13c38 100644
--- a/lib/bundle.js
+++ b/lib/bundle.js
@@ -36,10 +36,10 @@ function Builder(_config) {
   if (cfg.bundles)
     delete cfg.bundles;
 
-  this.config(cfg);
+  this.config(cfg, true);
 
   if (typeof _config == 'object')
-    this.config(_config);
+    this.config(_config, true);
 }
 Builder.prototype = Object.create(SystemJSBuilder.prototype);
 exports.Builder = Builder;
diff --git a/package.json b/package.json
index fdcc73201..6659b8f74 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "jspm",
   "description": "Registry and format agnostic JavaScript package manager",
-  "version": "0.16.7",
+  "version": "0.16.8",
   "main": "./api.js",
   "author": "",
   "dependencies": {