diff --git a/examples/server.rs b/examples/server.rs
index 73303bb..c757829 100644
--- a/examples/server.rs
+++ b/examples/server.rs
@@ -6,7 +6,7 @@
 //!
 //! You can test this out by running:
 //!
-//!     cargo run --example server
+//!     cargo run --example server 127.0.0.1:12345
 //!
 //! And then in another window run:
 //!