diff --git a/DungeonShooting_Godot/src/framework/map/RandomPool.cs b/DungeonShooting_Godot/src/framework/map/RandomPool.cs
index 3328785e..ece110c9 100644
--- a/DungeonShooting_Godot/src/framework/map/RandomPool.cs
+++ b/DungeonShooting_Godot/src/framework/map/RandomPool.cs
@@ -114,7 +114,7 @@ public class RandomPool
     private void FillRewardRoom(RoomPreinstall preinstall)
     {
         var wave = GetOrCreateWave(preinstall, 0);
-        var mark = CreateMark(ActivityType.Treasure, 0, (preinstall.RoomInfo.Waypoints + new Vector2(0.5f, 0.5f)) * GameConfig.TileCellSize);
+        var mark = CreateMark(ActivityType.Treasure, 0, preinstall.GetSpecialMark(SpecialMarkType.Box).Position);
         mark.Id = "treasure_box0001";
         wave.Add(mark);
     }