Index: Ringtoets/Piping/test/Ringtoets.Piping.KernelWrapper.Test/PipingCalculatorTest.cs
===================================================================
diff -u -rad0f4a7a0f8b9f065da77eda1a450ac3696b8f7f -r99f686f22091051a65ff1ee20abd68ffad713647
--- Ringtoets/Piping/test/Ringtoets.Piping.KernelWrapper.Test/PipingCalculatorTest.cs	(.../PipingCalculatorTest.cs)	(revision ad0f4a7a0f8b9f065da77eda1a450ac3696b8f7f)
+++ Ringtoets/Piping/test/Ringtoets.Piping.KernelWrapper.Test/PipingCalculatorTest.cs	(.../PipingCalculatorTest.cs)	(revision 99f686f22091051a65ff1ee20abd68ffad713647)
@@ -311,7 +311,7 @@
         {
             // Setup
             PipingCalculatorInput.ConstructionProperties properties = CreateSimpleConstructionProperties();
-            properties.SurfaceLine = new PipingSurfaceLine();
+            properties.SurfaceLine = new PipingSurfaceLine(string.Empty);
 
             var input = new PipingCalculatorInput(properties);
             input.SurfaceLine.SetGeometry(new[]
@@ -360,7 +360,7 @@
         {
             // Setup
             PipingCalculatorInput.ConstructionProperties properties = CreateSimpleConstructionProperties();
-            properties.SurfaceLine = new PipingSurfaceLine();
+            properties.SurfaceLine = new PipingSurfaceLine(string.Empty);
 
             var input = new PipingCalculatorInput(properties);
             input.SurfaceLine.SetGeometry(new[]
@@ -616,7 +616,7 @@
 
         private static PipingSurfaceLine CreateValidSurfaceLine()
         {
-            var pipingSurfaceLine = new PipingSurfaceLine();
+            var pipingSurfaceLine = new PipingSurfaceLine(string.Empty);
             pipingSurfaceLine.SetGeometry(new[]
             {
                 new Point3D(0, 0, 2),