diff --git a/types/nightmare/nightmare-tests.ts b/types/nightmare/nightmare-tests.ts
index 443f239a4d..9275e04ff2 100644
--- a/types/nightmare/nightmare-tests.ts
+++ b/types/nightmare/nightmare-tests.ts
@@ -1,5 +1,7 @@
 
 /// <reference types="jquery" />
+/// <reference types="node" />
+
 
 import Nightmare = require("nightmare");