Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Builders/SoilProfileBuilder1DTest.cs
===================================================================
diff -u -rfab2798bdc0feb4454b6384aefbe9db3f9a294fb -r10779bb6a6db2d00f4627b2bc190e7e35e1fee3e
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Builders/SoilProfileBuilder1DTest.cs	(.../SoilProfileBuilder1DTest.cs)	(revision fab2798bdc0feb4454b6384aefbe9db3f9a294fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Builders/SoilProfileBuilder1DTest.cs	(.../SoilProfileBuilder1DTest.cs)	(revision 10779bb6a6db2d00f4627b2bc190e7e35e1fee3e)
@@ -3,6 +3,7 @@
 using NUnit.Framework;
 using Ringtoets.Piping.Data;
 using Ringtoets.Piping.IO.Builders;
+using Ringtoets.Piping.Primitives;
 
 namespace Ringtoets.Piping.IO.Test.Builders
 {