diff --git a/hexworld/HexRender.cs b/hexworld/HexRender.cs
index ec7068d..eb2e466 100644
--- a/hexworld/HexRender.cs
+++ b/hexworld/HexRender.cs
@@ -7,6 +7,7 @@ using Diamond.Buffers;
 using Diamond.Level;
 using Diamond.Shaders;
 using Diamond.Textures;
+using Diamond.Util;
 using Newtonsoft.Json.Linq;
 using OpenTK;
 using OpenTK.Graphics;