diff --git a/server/gameserver/incubator.cc b/server/gameserver/incubator.cc
index 000139f6..c2038aa1 100644
--- a/server/gameserver/incubator.cc
+++ b/server/gameserver/incubator.cc
@@ -314,7 +314,7 @@ void Incubator::SpawnWaveMon(int wave)
                  }
              },
              &xtimer_attacher_.timer_list_);
-             ++room->pve_data.refreshed_mon;
+        ++room->pve_data.refreshed_mon;
     }
 }