diff --git a/Tools/Editor/ToolsEditor.cs b/Tools/Editor/ToolsEditor.cs
index 9e6dc73..a7fe40a 100644
--- a/Tools/Editor/ToolsEditor.cs
+++ b/Tools/Editor/ToolsEditor.cs
@@ -1,3 +1,4 @@
+#if UNITY_EDITOR
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
@@ -531,3 +532,4 @@ public class ToolsEditor{
     #endregion
 #endif
 }
+#endif