diff --git a/angularjs/angular.d.ts b/angularjs/angular.d.ts
index 084bea034f..b341825e0e 100755
--- a/angularjs/angular.d.ts
+++ b/angularjs/angular.d.ts
@@ -445,6 +445,7 @@ declare module ng {
         $untouched: boolean;
 
         $validators: IModelValidators;
+        $asyncValidators: IModelValidators;
 
         $pristine: boolean;
         $dirty: boolean;