diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 6bcfc194..6c5c1d86 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -1272,18 +1272,20 @@ void Creature::UpdatePoisoning()
         } else {
             dmg = std::max(1.0f, dmg);
         }
-        float dmg_out = 0.0f;
-        DecHP(dmg, VP_Gas, TEXT("battle_server_killer_gas", "毒圈"), VW_Gas,
-              VP_Gas,
-              TEXT("battle_server_killer_gas", "毒圈"),
-              dmg_out);
-        if (IsPlayer()) {
-            int eliminate_time = std::min(30.0f, GetHP() / std::max(1.0f, dmg_out));
-            room->frame_event.AddPropChg(GetWeakPtrRef(),
-                                         kPropEliminateTime,
-                                         0,
-                                         eliminate_time,
-                                         true);
+        if (!GetCar()) {
+            float dmg_out = 0.0f;
+            DecHP(dmg, VP_Gas, TEXT("battle_server_killer_gas", "毒圈"), VW_Gas,
+                  VP_Gas,
+                  TEXT("battle_server_killer_gas", "毒圈"),
+                  dmg_out);
+            if (IsPlayer()) {
+                int eliminate_time = std::min(30.0f, GetHP() / std::max(1.0f, dmg_out));
+                room->frame_event.AddPropChg(GetWeakPtrRef(),
+                                             kPropEliminateTime,
+                                             0,
+                                             eliminate_time,
+                                             true);
+            }
         }
         if (dead) {
             poisoning_time = 0;
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index d69ebaf6..b02f9fe5 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -365,6 +365,7 @@ class Creature : public MoveableEntity
     void OnLand();
     std::shared_ptr<Compose> GetCompose() { return compose_; }
     void ClearGemStoneBuffs();
+    virtual Car* GetCar() { return nullptr; }
 
 protected:
     virtual void OnBuffRemove(Buff& buff);
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index 2eb43c85..2359b5e0 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -238,7 +238,7 @@ class Human : public Creature
     void OnEnable();
     void OnDisable();
     virtual void UpdateMove() override;
-    Car* GetCar() { return car_; }
+    virtual Car* GetCar() override { return car_; }
     void SetCar(Car* car) { car_ = car; }
     int GetSeat() { return seat_; }
     void SetSeat(int seat) { seat_ = seat; }