diff --git a/mongodb/mongodb-1.4.9-tests.ts b/mongodb/mongodb-1.4.9-tests.ts
index 9cd73d0736..3f3efbb554 100644
--- a/mongodb/mongodb-1.4.9-tests.ts
+++ b/mongodb/mongodb-1.4.9-tests.ts
@@ -1,4 +1,4 @@
-///<reference path="mongodb.d.ts"/>
+///<reference path="mongodb-1.4.9.d.ts"/>
 
 // Test source : https://github.com/mongodb/node-mongodb-native
 import mongodb = require('mongodb');