diff --git a/server/gameserver/roommgr.cc b/server/gameserver/roommgr.cc
index f25a925e..9400cbf6 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -1175,6 +1175,9 @@ void RoomMgr::_CMJoinMoba(f8::MsgHdr* hdr, const cs::CMJoin& msg)
                 return;
             }
             if (p->GetRoom()) {
+                if (p->GetRoom()->GetGasData().GetGasMode() != GasInactive) {
+                    return;
+                }
                 auto hum = p->GetRoom()->GetPlayerByAccountId(join_msg->account_id());
                 if (hum) {
                     hum->ReJoin(ip_saddr, socket_handle, join_msg, p);