diff --git a/lib/index.js b/lib/index.js
index c6da094..d76a447 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -50,7 +50,7 @@ MongoStorage = (function() {
         }
       });
     } else {
-      return mongodb.MongoClient.connect(this.settings.url, this.settings, function(err, db) {
+      return mongodb.MongoClient.connect(this.settings.url, function(err, db) {
         if (!err) {
           debug('Mongo connection established: ' + self.settings.url);
           self.db = db;