diff --git a/application/api/model/Sign.php b/application/api/model/Sign.php
index 814118f..e6932af 100644
--- a/application/api/model/Sign.php
+++ b/application/api/model/Sign.php
@@ -469,8 +469,6 @@ class Sign extends Model
                     //之前位置无人，换麦
                     db::name('vs_room_pit')->where(['room_id' => $room_id, 'pit_number' => $on_pit2_user['before_pit_number']])
                         ->update(['user_id' => $on_pit2_user['user_id']]);
-                    db::name('vs_room_pit')->where(['room_id' => $room_id, 'pit_number' => 2])
-                        ->update(['before_pit_number' => 0]);
 
                     //推送换麦消息
                     $this->sendPitChangeMessage($on_pit2_user['user_id'], $room_id, 2, $on_pit2_user['before_pit_number']);