diff --git a/packages/platform-browser-dynamic/src/resource_loader/resource_loader_impl.ts b/packages/platform-browser-dynamic/src/resource_loader/resource_loader_impl.ts
index b047058b69..4e5dfd6e5e 100644
--- a/packages/platform-browser-dynamic/src/resource_loader/resource_loader_impl.ts
+++ b/packages/platform-browser-dynamic/src/resource_loader/resource_loader_impl.ts
@@ -14,7 +14,7 @@ export class ResourceLoaderImpl extends ResourceLoader {
   get(url: string): Promise<string> {
     let resolve: (result: any) => void;
     let reject: (error: any) => void;
-    const promise = new Promise((res, rej) => {
+    const promise = new Promise<string>((res, rej) => {
       resolve = res;
       reject = rej;
     });
diff --git a/packages/platform-browser/test/dom/events/event_manager_spec.ts b/packages/platform-browser/test/dom/events/event_manager_spec.ts
index 130539b555..6b9c70a794 100644
--- a/packages/platform-browser/test/dom/events/event_manager_spec.ts
+++ b/packages/platform-browser/test/dom/events/event_manager_spec.ts
@@ -107,7 +107,6 @@ class FakeEventManagerPlugin extends EventManagerPlugin {
 
 class FakeNgZone extends NgZone {
   constructor() { super({enableLongStackTrace: false}); }
-  run(fn: Function) { fn(); }
-
+  run<T>(fn: (...args: any[]) => T, applyThis?: any, applyArgs?: any[]): T { return fn(); }
   runOutsideAngular(fn: Function) { return fn(); }
 }