diff --git a/source-map-support/source-map-support.d.ts b/source-map-support/source-map-support.d.ts
index b0de346a7b..31a6420425 100644
--- a/source-map-support/source-map-support.d.ts
+++ b/source-map-support/source-map-support.d.ts
@@ -1,15 +1,17 @@
-// Type definitions for source-map-support 0.2.6
+// Type definitions for source-map-support 0.2.10
 // Project: https://github.com/evanw/source-map-support
 // Definitions by: Bart van der Schoor <https://github.com/Bartvds>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
+/// <reference path="../node/node.d.ts" />
+
 declare module 'source-map-support' {
 	/**
 	 * Output of retrieveSourceMap().
 	 */
 	export interface UrlAndMap {
 		url: string;
-		map: any; // string or Buffer
+		map: string|Buffer;
 	}
 
 	/**