Index: Ringtoets/Piping/src/Ringtoets.Piping.KernelWrapper/PipingCalculator.cs
===================================================================
diff -u -r81fa8a9bf3bd503cbd280e88b8f6037a840cff12 -r0ecc2eb11789b230484e87fd6109bc61dc8d9b2d
--- Ringtoets/Piping/src/Ringtoets.Piping.KernelWrapper/PipingCalculator.cs	(.../PipingCalculator.cs)	(revision 81fa8a9bf3bd503cbd280e88b8f6037a840cff12)
+++ Ringtoets/Piping/src/Ringtoets.Piping.KernelWrapper/PipingCalculator.cs	(.../PipingCalculator.cs)	(revision 0ecc2eb11789b230484e87fd6109bc61dc8d9b2d)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Deltares.WTIPiping;
+using Ringtoets.Piping.KernelWrapper.Creators;
 using Ringtoets.Piping.KernelWrapper.SubCalculator;
 using EffectiveThicknessCalculator = Ringtoets.Piping.KernelWrapper.SubCalculator.EffectiveThicknessCalculator;
 using HeaveCalculator = Ringtoets.Piping.KernelWrapper.SubCalculator.HeaveCalculator;