diff --git a/packages/hub/test/hub/Hub.test.ts b/packages/hub/test/hub/Hub.test.ts
index 34af9018..2df3b8fe 100644
--- a/packages/hub/test/hub/Hub.test.ts
+++ b/packages/hub/test/hub/Hub.test.ts
@@ -34,7 +34,7 @@ describe('Hub', function () {
       const hub = new Hub();
       await hub.start();
       await new Promise(resolve => (<any> hub).messengerServer.close(resolve));
-      await expect(hub.stop()).to.be.rejectedWith('Not running');
+      await expect(hub.stop()).to.be.rejectedWith('not running');
     });
 
   });