diff --git a/Runtime/Utility/TerrainMeshUtility.cs b/Runtime/Utility/TerrainMeshUtility.cs
index ccbdf68..2272fbd 100644
--- a/Runtime/Utility/TerrainMeshUtility.cs
+++ b/Runtime/Utility/TerrainMeshUtility.cs
@@ -1,5 +1,4 @@
-using System;
-using UnityEditor.SceneManagement;
+using System;
 using UnityEngine;
 
 namespace Gameframe.Procgen
@@ -118,4 +117,4 @@ public Mesh CreateMesh()
 
   }
 
-}
\ No newline at end of file
+}