diff --git a/examples/express-ex/index.js b/examples/express-ex/index.js
index 2b5e783..b612d4b 100644
--- a/examples/express-ex/index.js
+++ b/examples/express-ex/index.js
@@ -41,5 +41,5 @@ app.post('/', function (req, res) {
 });
 
 app.listen(3000, function () {
-  console.log('Example app listening on port 3000!');
+  console.log("Example app listening on port 3000!");
 });