diff --git a/Source/Engine/Graphics/Graphics.Build.cs b/Source/Engine/Graphics/Graphics.Build.cs
index 3e902e204..e4bad1f87 100644
--- a/Source/Engine/Graphics/Graphics.Build.cs
+++ b/Source/Engine/Graphics/Graphics.Build.cs
@@ -1,5 +1,6 @@
 // Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
 
+using System.IO;
 using System.Collections.Generic;
 using Flax.Build;
 using Flax.Build.NativeCpp;