diff --git a/sample/hello-world.c b/sample/hello-world.c
index a13e06af..f3b9b4d6 100644
--- a/sample/hello-world.c
+++ b/sample/hello-world.c
@@ -27,7 +27,7 @@
 
 static const char MESSAGE[] = "Hello, World!\n";
 
-static const int PORT = 9995;
+static const unsigned short PORT = 9995;
 
 static void listener_cb(struct evconnlistener *, evutil_socket_t,
     struct sockaddr *, int socklen, void *);