diff --git a/types/vfile-location/index.d.ts b/types/vfile-location/index.d.ts
index fbea17630e..1e4e2a1232 100644
--- a/types/vfile-location/index.d.ts
+++ b/types/vfile-location/index.d.ts
@@ -5,6 +5,8 @@
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 3.0
 
+/// <reference types="node" />
+
 import * as VFile from "vfile";
 
 declare function vfileLocation(vfile: string | VFile.VFile): vfileLocation.Location;