diff --git a/express-helloworld/app.js b/express-helloworld/app.js
index 782ccf03..5a7e1b95 100644
--- a/express-helloworld/app.js
+++ b/express-helloworld/app.js
@@ -5,7 +5,10 @@ app.get('/', function (req, res) {
   res.send('Hello World!\n');
 });
 
-app.listen(8080, function () {
-  console.log('Example app listening on port 8080!');
+app.get('/mars', function (req, res) {
+  res.send('Hello Mars!\n');
+});
+app.listen(30080, function () {
+  console.log('Example app listening on port 30080!');
 });