diff --git a/src/rendezvous_server.rs b/src/rendezvous_server.rs
index d8d9be8..dff45eb 100644
--- a/src/rendezvous_server.rs
+++ b/src/rendezvous_server.rs
@@ -47,7 +47,7 @@ enum Data {
     RelayServers(RelayServers),
 }
 
-const REG_TIMEOUT: i32 = 30_000;
+const REG_TIMEOUT: i64 = 30_000;
 type TcpStreamSink = SplitSink<Framed<TcpStream, BytesCodec>, Bytes>;
 type WsSink = SplitSink<tokio_tungstenite::WebSocketStream<TcpStream>, tungstenite::Message>;
 enum Sink {
@@ -697,7 +697,7 @@ impl RendezvousServer {
         if let Some(peer) = self.pm.get(&id).await {
             let (elapsed, peer_addr) = {
                 let r = peer.read().await;
-                (r.last_reg_time.elapsed().as_millis() as i32, r.socket_addr)
+                (r.last_reg_time.elapsed().as_millis() as i64, r.socket_addr)
             };
             if elapsed >= REG_TIMEOUT {
                 let mut msg_out = RendezvousMessage::new();
@@ -790,7 +790,7 @@ impl RendezvousServer {
         let mut states = BytesMut::zeroed((peers.len() + 7) / 8);
         for (i, peer_id) in peers.iter().enumerate() {
             if let Some(peer) = self.pm.get_in_memory(peer_id).await {
-                let elapsed = peer.read().await.last_reg_time.elapsed().as_millis() as i32;
+                let elapsed = peer.read().await.last_reg_time.elapsed().as_millis() as i64;
                 // bytes index from left to right
                 let states_idx = i / 8;
                 let bit_idx = 7 - i % 8;