diff --git a/lib/6to5/file.js b/lib/6to5/file.js
index f1f0c42768..c7222c989f 100644
--- a/lib/6to5/file.js
+++ b/lib/6to5/file.js
@@ -11,7 +11,7 @@ var _         = require("lodash");
 
 function File(opts) {
   this.opts            = File.normaliseOptions(opts);
-  this.moduleFormatter = this.getModuleFormatter(this.opts.modules, this.opts);
+  this.moduleFormatter = this.getModuleFormatter(this.opts.modules);
 
   this.declarations = {};
   this.uids         = {};