diff --git a/transports/webrtc/examples/listen_ping.rs b/transports/webrtc/examples/listen_ping.rs
index 7e74bab7d9b..c36e93fa5ca 100644
--- a/transports/webrtc/examples/listen_ping.rs
+++ b/transports/webrtc/examples/listen_ping.rs
@@ -38,8 +38,7 @@ fn create_swarm() -> Result<Swarm<Behaviour>> {
         Behaviour::default(),
         peer_id,
         SwarmConfig::with_tokio_executor(),
-    )
-    .build())
+    ))
 }
 
 #[derive(NetworkBehaviour, Default)]