Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Builders/SoilLayer2DTest.cs
===================================================================
diff -u -rc1e31ab57c197658d1c75750feef8856df7e9f6b -rdd7a5cfb0343fa2350b4143232b94cbba37612e9
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Builders/SoilLayer2DTest.cs	(.../SoilLayer2DTest.cs)	(revision c1e31ab57c197658d1c75750feef8856df7e9f6b)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Builders/SoilLayer2DTest.cs	(.../SoilLayer2DTest.cs)	(revision dd7a5cfb0343fa2350b4143232b94cbba37612e9)
@@ -1,6 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+
+using Core.Common.Base.Geometry;
+
 using NUnit.Framework;
 
 using Ringtoets.Piping.Data;