diff --git a/crates/ptth_quic/src/executable_relay_server.rs b/crates/ptth_quic/src/executable_relay_server.rs
index e5de31d..fffa727 100644
--- a/crates/ptth_quic/src/executable_relay_server.rs
+++ b/crates/ptth_quic/src/executable_relay_server.rs
@@ -30,6 +30,7 @@ pub async fn main (opt: Opt) -> anyhow::Result <()>
 	let listen_addr = opt.listen_addr.unwrap_or_else (|| String::from ("0.0.0.0:30380")).parse ()?;
 	let (endpoint, server_cert) = make_server_endpoint (listen_addr)?;
 	println! ("Base64 cert: {}", base64::encode (&server_cert));
+	println! ("Listening on {}", listen_addr);
 	
 	tokio::fs::create_dir_all ("ptth_quic_output").await?;
 	tokio::fs::write ("ptth_quic_output/quic_server.crt", &server_cert).await?;