diff --git a/src/platform/key.ts b/src/platform/key.ts
index c013b4d445..eb797bac0e 100644
--- a/src/platform/key.ts
+++ b/src/platform/key.ts
@@ -1,12 +1,9 @@
 
-export enum Key {
-  LEFT = 37,
-  UP = 38,
-  RIGHT = 39,
-  DOWN = 40,
-
-  ENTER = 13,
-  ESCAPE = 27,
-  SPACE = 32,
-  TAB = 9
-}
+export const KEY_LEFT = 37;
+export const KEY_UP = 38;
+export const KEY_RIGHT = 39;
+export const KEY_DOWN = 40;
+export const KEY_ENTER = 13;
+export const KEY_ESCAPE = 27;
+export const KEY_SPACE = 32;
+export const KEY_TAB = 9;
diff --git a/src/platform/keyboard.ts b/src/platform/keyboard.ts
index 00e5816ee3..7e8b3a7c1e 100644
--- a/src/platform/keyboard.ts
+++ b/src/platform/keyboard.ts
@@ -3,7 +3,7 @@ import { Injectable, NgZone } from '@angular/core';
 import { Config } from '../config/config';
 import { DomController } from './dom-controller';
 import { isTextInput } from '../util/dom';
-import { Key } from './key';
+import { KEY_TAB } from './key';
 import { Platform } from './platform';
 
 
@@ -176,7 +176,7 @@ export class Keyboard {
 
     // default is to add the focus-outline when the tab key is used
     function keyDown(ev: KeyboardEvent) {
-      if (!isKeyInputEnabled && ev.keyCode === Key.TAB) {
+      if (!isKeyInputEnabled && ev.keyCode === KEY_TAB) {
         isKeyInputEnabled = true;
         enableKeyInput();
       }
diff --git a/src/platform/platform.ts b/src/platform/platform.ts
index af72a84399..9a1bcd2e97 100644
--- a/src/platform/platform.ts
+++ b/src/platform/platform.ts
@@ -796,7 +796,7 @@ export class Platform {
 
     // add the window resize event listener XXms after
     this.timeout(() => {
-      var timerId: number;
+      var timerId: any;
       this.registerListener(this._win, 'resize', () => {
         clearTimeout(timerId);