diff --git a/server/gameserver/car.h b/server/gameserver/car.h
index 271dd303..7ca32801 100644
--- a/server/gameserver/car.h
+++ b/server/gameserver/car.h
@@ -53,6 +53,8 @@ class Car : public Creature
     void BeKill(int killer_id, const std::string& killer_name, int weapon_id);
     bool IsPassenger(Human* hum);
     void RecalcSelfCollider();
+    bool NeedCreatureCollision();
+    void CheckCreatureCollision();
 
  private:
     long long born_frameno_ = 0;
diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index a25b5bb9..c6aa8441 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -2771,3 +2771,13 @@ void Creature::OnBattleStart(Room* room)
         RemoveBuffByUniId(*itr);
     }
 }
+
+bool Creature::NeedCreatureCollision()
+{
+    return false;
+}
+
+void Creature::CheckCreatureCollision()
+{
+
+}