diff --git a/src/main.rs b/src/main.rs
index 86c9656..d10ca6c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -56,7 +56,7 @@ struct Client {
     /// 'udp://1212:1.1.1.1:53?timeout_sec=10' => timeout_sec force timeout the tunnel after 10sec. Set it to 0 to disable the timeout
     /// 'socks5://1212' => listen locally with socks5 on port 1212 and forward dynamically requested tunnel
     /// 'socks5://1212?socket_so_mark=2' => each tunnel can have the socket_so_mark option, cf explanation on server command
-    #[arg(short='L', long, value_name = "{tcp,udp,socks5}://[BIND:]PORT:HOST:PORT", value_parser = parse_tunnel_arg)]
+    #[arg(short='L', long, value_name = "{tcp,udp,socks5}://[BIND:]PORT:HOST:PORT", value_parser = parse_tunnel_arg, verbatim_doc_comment)]
     local_to_remote: Vec<LocalToRemote>,
 
     /// Domain name that will be use as SNI during TLS handshake