diff --git a/Contour.cs b/Contour.cs
index d310f5a..2509ad2 100644
--- a/Contour.cs
+++ b/Contour.cs
@@ -13,7 +13,6 @@ using AcAp = Bricscad.ApplicationServices;
 #endif
 using System;
 using System.Collections.Generic;
-using BricscadExtensions;
 
 namespace Boprs
 {