diff --git a/rx.js/rx.d.ts b/rx.js/rx.d.ts
index f055452e3..949baa68e 100644
--- a/rx.js/rx.d.ts
+++ b/rx.js/rx.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for RxJS
+// Type definitions for RxJS v2.2.13
 // Project: http://rx.codeplex.com/
 // Definitions by: gsino <http://www.codeplex.com/site/users/view/gsino>
 // Revision by: Igor Oleinikov <https://github.com/Igorbek>
@@ -167,7 +167,6 @@ declare module Rx {
 	// Current Thread IScheduler
 	interface ICurrentThreadScheduler extends IScheduler {
 		scheduleRequired(): boolean;
-		ensureTrampoline(action: () =>IDisposable): IDisposable;
 	}
 
 	// Notifications