diff --git a/angular-local-storage/angular-local-storage-tests.ts b/angular-local-storage/angular-local-storage-tests.ts
index 9f59a90dd..fde523af5 100644
--- a/angular-local-storage/angular-local-storage-tests.ts
+++ b/angular-local-storage/angular-local-storage-tests.ts
@@ -14,7 +14,7 @@ interface TestScope extends ng.IScope {
 
 module ng.local.storage.tests {
   export class TestController {
-    constructor($scope: TestScope, localStorageService: ng.local.storage.ILocalStorageService) {
+    constructor($scope: TestScope, localStorageService: ng.local.storage.ILocalStorageService<string>) {
       // isSupported
       if (localStorageService.isSupported) {
         // do something
@@ -72,4 +72,4 @@ app.config(function (localStorageServiceProvider: ng.local.storage.ILocalStorage
     .setNotify(true, true);
 });
 
-app.controller('TestController', ng.local.storage.tests.TestController);
\ No newline at end of file
+app.controller('TestController', ng.local.storage.tests.TestController);