diff --git a/src/main.rs b/src/main.rs
index f5926d2..61011ab 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -117,7 +117,7 @@ async fn inner_handle_connection(
 
     // Insert the write part of this peer to the peer map.
     let (tx, rx) = unbounded();
-    peer_map.lock().unwrap().insert(addr, tx.clone());
+    { peer_map.lock().unwrap().insert(addr, tx.clone()); }
 
     let (outgoing, incoming) = ws_stream.split();