diff --git a/lib/extendStringPrototype.js b/lib/extendStringPrototype.js
index 10c10f0..d6a3f63 100644
--- a/lib/extendStringPrototype.js
+++ b/lib/extendStringPrototype.js
@@ -67,7 +67,7 @@ module['exports'] = function () {
     var stringPrototypeBlacklist = [
       '__defineGetter__', '__defineSetter__', '__lookupGetter__', '__lookupSetter__', 'charAt', 'constructor',
       'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf', 'charCodeAt',
-      'indexOf', 'lastIndexof', 'length', 'localeCompare', 'match','repeat' , 'replace', 'search', 'slice', 'split', 'substring',
+      'indexOf', 'lastIndexof', 'length', 'localeCompare', 'match', 'repeat', 'replace', 'search', 'slice', 'split', 'substring',
       'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toUpperCase', 'trim', 'trimLeft', 'trimRight'
     ];