diff --git a/server_example_test.go b/server_example_test.go
index a87f3b1..27a695e 100644
--- a/server_example_test.go
+++ b/server_example_test.go
@@ -87,7 +87,7 @@ func ExampleServer() {
 func ExampleRequestCtx_Hijack() {
 	// hijackHandler is called on hijacked connection.
 	hijackHandler := func(c net.Conn) {
-		fmt.Fprintf(c, "This message is sent over a hijacked connection to the client %d\n", c.RemoteAddr())
+		fmt.Fprintf(c, "This message is sent over a hijacked connection to the client %s\n", c.RemoteAddr())
 		fmt.Fprintf(c, "Send me something and I'll echo it to you\n")
 		var buf [1]byte
 		for {