diff --git a/lib/express-ie-cors.js b/lib/express-ie-cors.js
index 0fc63e8..9fa2167 100644
--- a/lib/express-ie-cors.js
+++ b/lib/express-ie-cors.js
@@ -12,7 +12,7 @@ var useragent = require('useragent');
 
 module.exports = function (options) {
     options = options || {};
-    var newContentType = options.contentType || 'application/json;charset=utf-8"';
+    var newContentType = options.contentType || 'application/json;charset=utf-8';
 
     return function (req, res, next) {
         var useragentString = req.headers['user-agent'];