diff --git a/server/gameserver/incubator.cc b/server/gameserver/incubator.cc
index c0e5e2df..f9ef74dc 100644
--- a/server/gameserver/incubator.cc
+++ b/server/gameserver/incubator.cc
@@ -258,6 +258,9 @@ void Incubator::OnEnterNewWave(int wave)
     if (room->IsGameOver()) {
         return;
     }
+    if (timeout_) {
+        return;
+    }
     if (
         room->pve_data.refreshed_mon > 0 &&
         room->pve_data.mon_num > 0