diff --git a/types/ember/index.d.ts b/types/ember/index.d.ts
index 390bad601a..011cf1821d 100755
--- a/types/ember/index.d.ts
+++ b/types/ember/index.d.ts
@@ -16,6 +16,7 @@
 /// <reference types="handlebars" />
 /// <reference types="ember__string" />
 /// <reference types="ember__polyfills" />
+/// <reference types="ember__object" />
 
 declare module 'ember' {
     import {