diff --git a/cmd/httpagent/main.go b/cmd/httpagent/main.go
index 01adc58..8abcee7 100644
--- a/cmd/httpagent/main.go
+++ b/cmd/httpagent/main.go
@@ -8,8 +8,9 @@ import (
 )
 
 var (
-	token   = flag.String("token", "", "Service identifier token")
-	backend = flag.String("backend", "127.0.0.1:9090", "backend TCP/HTTP server")
+	token      = flag.String("token", "", "Service identifier token")
+	backend    = flag.String("backend", "127.0.0.1:9090", "backend TCP/HTTP server")
+	serverAddr = flag.String("server", "127.0.0.1:9234", "frontend HTTP server")
 )
 
 func main() {
@@ -18,7 +19,7 @@ func main() {
 	cfg := &tunnel.ClientConfig{
 		Identifier: *token,
 		LocalAddr:  *backend,
-		ServerAddr: "127.0.0.1:9234",
+		ServerAddr: *serverAddr,
 	}
 
 	client, err := tunnel.NewClient(cfg)