diff --git a/server/gameserver/roommgr.cc b/server/gameserver/roommgr.cc
index 3458c19..16f74fa 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -79,7 +79,7 @@ void RoomMgr::Update(int delta_time)
         #ifdef DEBUG
         if (a8::XGetTickCount() - last_tick > 1000 *1) {
             last_tick = a8::XGetTickCount();
-            a8::UdpLog::Instance()->Debug("room %d real_alive_count:%d",
+            a8::UdpLog::Instance()->Debug("room_idx:%d real_alive_count:%d",
                                           {
                                            room->room_idx,
                                            room->RealAliveCount()