diff --git a/server/gameserver/airdrop.cc b/server/gameserver/airdrop.cc
index 27e5791b..e2f3d516 100644
--- a/server/gameserver/airdrop.cc
+++ b/server/gameserver/airdrop.cc
@@ -79,10 +79,10 @@ void AirDrop::Exec(int appear_time, int box_id, int airdrop_id)
                  }
              },
              &room_->xtimer_attacher_);
-        ++airdrop_times_;
         ShuaMon(box_pos,
                 thing_meta->_airdrop_mon_list,
                 std::max(thing_meta->width(), thing_meta->height()));
+        ++airdrop_times_;
     }
 }