diff --git a/README.md b/README.md
index 042074b..c6044ea 100644
--- a/README.md
+++ b/README.md
@@ -96,7 +96,7 @@ fastify.get('/user/:id', async (req, reply) => {
   return rows[0]
 })
 
-fastify.listen(3000, err => {
+fastify.listen({ port: 3000 }, err => {
   if (err) throw err
   console.log(`server listening on ${fastify.server.address().port}`)
 })