diff --git a/server/gameserver/roommgr.cc b/server/gameserver/roommgr.cc
index 6f7bda3d..ac725a90 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -1127,6 +1127,7 @@ void RoomMgr::SendGetCustomBattleData(std::shared_ptr<cs::CMJoin> join_msg,
                      custom_battle->ParseResult(*rsp_obj);
                      if (custom_battle->GetParseOk()) {
                          cb(0, "", custom_battle);
+                         RoomMgr::Instance()->custom_room_hash_[custom_battle->GetRoomUuid()] = custom_battle;
                      } else {
                          cb(1, "", custom_battle);
                      }