diff --git a/src/Observable.ts b/src/Observable.ts
index 61ecafbbb5..be682d4d7e 100644
--- a/src/Observable.ts
+++ b/src/Observable.ts
@@ -131,7 +131,7 @@ export default class Observable<T> implements CoreOperators<T>  {
   }
 
   // static method stubs
-  static combineLatest: <T>(...observables: (Observable<any> | ((...values: Array<any>) => T)) []) => Observable<T>;
+  static combineLatest: <T>(...observables: (Observable<any> | ((...values: Array<any>) => T) | Scheduler)[]) => Observable<T>;
   static concat: (...observables: any[]) => Observable<any>;
   static defer: <T>(observableFactory: () => Observable<T>) => Observable<T>;
   static empty: <T>(scheduler?: Scheduler) => Observable<T>;
diff --git a/src/operators/combineLatest-static.ts b/src/operators/combineLatest-static.ts
index 8af8c77222..a517af8c76 100644
--- a/src/operators/combineLatest-static.ts
+++ b/src/operators/combineLatest-static.ts
@@ -3,7 +3,7 @@ import ArrayObservable from '../observables/ArrayObservable';
 import { CombineLatestOperator } from './combineLatest-support';
 import Scheduler from '../Scheduler';
 
-export default function combineLatest<T, R>(...observables: (Observable<any> | ((...values: Array<any>) => R) | Scheduler)[]): Observable<R> {
+export default function combineLatest<R>(...observables: (Observable<any> | ((...values: Array<any>) => R) | Scheduler)[]): Observable<R> {
   let project, scheduler;
 
   if (typeof (<any>observables[observables.length - 1]).schedule === 'function') {
@@ -15,4 +15,4 @@ export default function combineLatest<T, R>(...observables: (Observable<any> | (
   }
 
   return new ArrayObservable(observables, scheduler).lift(new CombineLatestOperator(project));
-}
\ No newline at end of file
+}