diff --git a/angularjs/angular-tests.ts b/angularjs/angular-tests.ts
index 647287215e..7885451561 100644
--- a/angularjs/angular-tests.ts
+++ b/angularjs/angular-tests.ts
@@ -95,6 +95,7 @@ module HttpAndRegularPromiseTests {
         theAnswer: number;
         letters: string[];
         snack: string;
+        nothing?: string;
     }
 
     var someController: Function = ($scope: SomeControllerScope, $http: ng.IHttpService, $q: ng.IQService) => {