diff --git a/rx.js/rx.async-lite.d.ts b/rx.js/rx.async-lite.d.ts
index 1b5bafd989..ce0f96778e 100644
--- a/rx.js/rx.async-lite.d.ts
+++ b/rx.js/rx.async-lite.d.ts
@@ -1,6 +1,8 @@
 // This file contains common part of defintions for rx.async.d.ts and rx.lite.d.ts
 // Do not include the file separately.
 
+///<reference path="rx-lite.d.ts"/>
+
 declare module Rx {
     interface ObservableStatic {
 		/**
diff --git a/rx.js/rx.backpressure-lite.d.ts b/rx.js/rx.backpressure-lite.d.ts
index 52ff182251..3cc78f6ca8 100644
--- a/rx.js/rx.backpressure-lite.d.ts
+++ b/rx.js/rx.backpressure-lite.d.ts
@@ -1,6 +1,8 @@
 // This file contains common part of defintions for rx.backpressure.d.ts and rx.lite.d.ts
 // Do not include the file separately.
 
+///<reference path="rx-lite.d.ts"/>
+
 declare module Rx {
 	export interface Observable<T> {
 		/**