diff --git a/ember/ember.d.ts b/ember/ember.d.ts
index 5d56143bd..8cf128013 100644
--- a/ember/ember.d.ts
+++ b/ember/ember.d.ts
@@ -204,7 +204,7 @@ interface EmberStatic {
     $; // jQuery
 
     // API Doc Members
-    A(arr: any[]): Ember.NativeArray;
+    A(arr: any[]): Ember.NativeArray<any>;
     addBeforeObserver(obj: Object, path: string, target: Object, method: Function);
     addListener(obj: Object, eventName: string, target: Object, method: Function);
     addObserver(obj: Object, path: string, target: Object, method: Function);
@@ -292,4 +292,4 @@ interface EmberStatic {
     wrap(func: Function, superFunc: Function);
 }
 
-declare var Em: EmberStatic;
\ No newline at end of file
+declare var Em: EmberStatic;