diff --git a/server/gameserver/car.cc b/server/gameserver/car.cc
index b9eec6a7..189a6b1c 100644
--- a/server/gameserver/car.cc
+++ b/server/gameserver/car.cc
@@ -208,12 +208,12 @@ void Car::SwitchSeat(Human* passenger, int seat)
         room->frame_event.AddCarChg(passenger->GetWeakPtrRef());
         SyncAroundPlayers(__FILE__, __LINE__, __func__);
     } else {
+        passenger->SetSeat(seat);
         if (driver_ == passenger) {
             driver_ = nullptr;
             passenger->RemoveBuffByEffectId(kBET_Driver);
             passenger->MustBeAddBuff(passenger, PASSENGER_BUFFID);
         }
-        passenger->SetSeat(seat);
         room->frame_event.AddCarChg(passenger->GetWeakPtrRef());
         SyncAroundPlayers(__FILE__, __LINE__, __func__);
     }