diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index a0cd39a..2eacae3 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1149,6 +1149,9 @@ void Room::MatchTeam(Human* hum)
 
 void Room::CombineTeam()
 {
+    if (GetRoomMode() == kZombieMode) {
+        return;
+    }
     std::map<int, size_t> need_combine_teams;
     std::map<int, size_t> need_combine_teams_copy;