diff --git a/lib/6to5/browser.js b/lib/6to5/browser.js
index f8d899afa4..35b93b8780 100644
--- a/lib/6to5/browser.js
+++ b/lib/6to5/browser.js
@@ -62,7 +62,7 @@ var runScripts = function () {
 
   var _scripts = global.document .getElementsByTagName("script");
 
-  for (var i = 0; i < imports.length; ++i) {
+  for (var i = 0; i < _scripts.length; ++i) {
     var _script = _scripts[i];
     if (types.indexOf(_script.type) >= 0) scripts.push(_script);
   }