diff --git a/index.js b/index.js
index 499c8e3..db05621 100644
--- a/index.js
+++ b/index.js
@@ -70,7 +70,7 @@ function preprocess(func) {
   
   //Retrieves a local variable
   function createLocal(id) {
-    var nstr = prefix + id.replace(/\_/g, "__")
+    var nstr = id !== 'arguments' ? prefix + id.replace(/\_/g, "__") : 'arguments'
     localVars.push(nstr)
     return nstr
   }
@@ -192,4 +192,4 @@ function preprocess(func) {
   return routine
 }
 
-module.exports = preprocess
\ No newline at end of file
+module.exports = preprocess