diff --git a/stamplay-js-sdk/stamplay-js-sdk-tests.ts b/stamplay-js-sdk/stamplay-js-sdk-tests.ts
index bfc229d49..88b6d713d 100644
--- a/stamplay-js-sdk/stamplay-js-sdk-tests.ts
+++ b/stamplay-js-sdk/stamplay-js-sdk-tests.ts
@@ -1,5 +1,5 @@
 /// <reference path="stamplay-js-sdk.d.ts" />
-
+Stamplay.init('sample');
 var userFn = Stamplay.User();
 var user = new userFn.Model;
 var colTags = Stamplay.Cobject('tag');
diff --git a/stamplay-js-sdk/stamplay-js-sdk.d.ts b/stamplay-js-sdk/stamplay-js-sdk.d.ts
index 154dc414e..ebd0d31b3 100644
--- a/stamplay-js-sdk/stamplay-js-sdk.d.ts
+++ b/stamplay-js-sdk/stamplay-js-sdk.d.ts
@@ -26,6 +26,7 @@ declare module Stamplay {
   }
 
   export interface StamplayStatic {
+      init(appId : string) : void;
       User() : IStamplayObject
       Cobject(object : string) : IStamplayObject
   }