diff --git a/natural-sort/natural-sort-tests.ts b/natural-sort/natural-sort-tests.ts
index 02b6c633d..d380ca51b 100644
--- a/natural-sort/natural-sort-tests.ts
+++ b/natural-sort/natural-sort-tests.ts
@@ -1,4 +1,4 @@
-/// <reference path="./naturalSort.d.ts" />
+/// <reference path="./natural-sort.d.ts" />
 
 import naturalSort = require("naturalSort");