diff --git a/angular-local-storage/angular-local-storage-tests.ts b/angular-local-storage/angular-local-storage-tests.ts
index 9f59a90dd4..fde523af5f 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);
diff --git a/angular-local-storage/angular-local-storage.d.ts b/angular-local-storage/angular-local-storage.d.ts
index 27d287dd3b..07c7157e13 100644
--- a/angular-local-storage/angular-local-storage.d.ts
+++ b/angular-local-storage/angular-local-storage.d.ts
@@ -75,7 +75,7 @@ declare module ng.local.storage {
 
   }
 
-  interface ILocalStorageService {
+  interface ILocalStorageService<T> {
     /**
      * Checks if the browser support the current storage type(e.g: localStorage, sessionStorage).
      * Returns: Boolean
@@ -92,14 +92,14 @@ declare module ng.local.storage {
      * @param key
      * @param value
      */
-    set(key: string, value: string): boolean;
+    set(key: string, value: T): boolean;
     /**
      * Directly get a value from local storage.
      * If local storage is not supported, use cookies instead.
      * Returns: value from local storage
      * @param key
      */
-    get(key: string): string;
+    get(key: string): T;
     /**
      * Return array of keys for local storage, ignore keys that not owned.
      * Returns: value from local storage
@@ -146,4 +146,4 @@ declare module ng.local.storage {
      */
     cookie:ICookie;
   }
-}
\ No newline at end of file
+}