diff --git a/modules/angular2/src/facade/async.ts b/modules/angular2/src/facade/async.ts
index f6ff6ff863..613bff2497 100644
--- a/modules/angular2/src/facade/async.ts
+++ b/modules/angular2/src/facade/async.ts
@@ -5,7 +5,7 @@ import {global, isPresent} from 'angular2/src/facade/lang';
 import {List} from 'angular2/src/facade/collection';
 import * as Rx from 'rx';
 
-export var Promise = (<any>global).Promise;
+export {Promise};
 
 export interface PromiseCompleter<R> {
   promise: Promise<R>;
diff --git a/modules/angular2/test/facade/async_spec.ts b/modules/angular2/test/facade/async_spec.ts
index 253384619e..79ac9294c7 100644
--- a/modules/angular2/test/facade/async_spec.ts
+++ b/modules/angular2/test/facade/async_spec.ts
@@ -77,11 +77,13 @@ export function main() {
            PromiseWrapper.then(one.promise, (_) => {
              expect(allCalled).toBe(false);
              two.resolve('two');
+             return null;
            });
 
            PromiseWrapper.then(all, (_) => {
              allCalled = true;
              async.done();
+             return null;
            });
 
            one.resolve('one');