diff --git a/apps/sdlan/src/quic/sdlan_quic_channel.erl b/apps/sdlan/src/quic/sdlan_quic_channel.erl
index f6f57ef..221c621 100644
--- a/apps/sdlan/src/quic/sdlan_quic_channel.erl
+++ b/apps/sdlan/src/quic/sdlan_quic_channel.erl
@@ -104,7 +104,7 @@ handle_event(internal, do_init, initializing, State=#state{conn = Conn, max_pack
                 max_packet_size = MaxPacketSize,
                 heartbeat_sec = HeartbeatSec
             }),
-            {ok, _} = quicer:send(Stream, <<0:32, ?PACKET_WELCOME, WelcomePkt/binary>>),
+            {ok, _} = quicer:send(Stream, <<?PACKET_WELCOME, WelcomePkt/binary>>),
             logger:debug("[sdlan_quic_channel] get stream: ~p, send welcome", [Stream]),
 
             {next_state, initialized, State#state{stream = Stream}};