diff --git a/angularjs/angular.d.ts b/angularjs/angular.d.ts
index d0b24fda36..c44f3408e4 100755
--- a/angularjs/angular.d.ts
+++ b/angularjs/angular.d.ts
@@ -208,7 +208,10 @@ declare module ng {
         $watch(watchExpression: string, listener?: (newValue: any, oldValue: any, scope: IScope) => any, objectEquality?: boolean): Function;
         $watch(watchExpression: (scope: IScope) => any, listener?: string, objectEquality?: boolean): Function;
         $watch(watchExpression: (scope: IScope) => any, listener?: (newValue: any, oldValue: any, scope: IScope) => any, objectEquality?: boolean): Function;
-        
+
+        $watchCollection(watchExpression: string, listener: (newValue: any, oldValue: any, scope: IScope) => any): Function;
+        $watchCollection(watchExpression: (scope: IScope) => any, listener: (newValue: any, oldValue: any, scope: IScope) => any): Function;
+
         $parent: IScope;
 
         $id: number;