diff --git a/angular-ui/angular-ui-router.d.ts b/angular-ui/angular-ui-router.d.ts
index 081d35723..0f8eb5c57 100644
--- a/angular-ui/angular-ui-router.d.ts
+++ b/angular-ui/angular-ui-router.d.ts
@@ -13,6 +13,7 @@ declare module ng.ui {
         templateUrl?: any;
         templateProvider?: () => string;
         controller?: any;
+        controllerAs?: string;
         controllerProvider?: any;
         resolve?: {};
         url?: string;