diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 34124b61..a810bb46 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -3559,6 +3559,8 @@ void Room::FillCustomBattleHuman()
              if (!member->IsJoined()) {
                  int socket_handle = 0;
                  int ip_saddr = 0;
+                 member->GetNetData()->join_msg = std::make_shared<cs::CMJoin>();
+                 member->GetNetData()->join_msg->set_account_id(member->GetAccountId());
 
                  Player* hum = NewPlayer();
                  hum->proto_version = member->GetNetData()->join_msg->proto_version();