diff --git a/types/signalr-no-jquery/signalr-no-jquery-tests.ts b/types/signalr-no-jquery/signalr-no-jquery-tests.ts
index 8a9ed3bde0..b3f2aaab16 100644
--- a/types/signalr-no-jquery/signalr-no-jquery-tests.ts
+++ b/types/signalr-no-jquery/signalr-no-jquery-tests.ts
@@ -2,13 +2,13 @@ import { hubConnection } from 'signalr-no-jquery';
 
 const connection = hubConnection('http://[address]:[port]');
 const hubProxy = connection.createHubProxy('hubNameString');
- 
+
 // set up event listeners i.e. for incoming "message" event
-hubProxy.on('message', function(message) {
+hubProxy.on('message', (message) => {
     console.log(message);
 });
  
 // connect
 connection.start({ jsonp: true })
-.done(function(){ console.log('Now connected, connection ID=' + connection.id); })
-.fail(function(){ console.log('Could not connect'); });
\ No newline at end of file
+.done(()=>{ console.log('Now connected, connection ID=' + connection.id); })
+.fail(()=>{ console.log('Could not connect'); });