Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/DuneLocationCalculationActivity.cs
===================================================================
diff -u -rd3b7642249e2d249bb15cbd7cd2ba3c157b613b1 -reaaa2db363e980c77e18d4cbc60976511267af31
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/DuneLocationCalculationActivity.cs	(.../DuneLocationCalculationActivity.cs)	(revision d3b7642249e2d249bb15cbd7cd2ba3c157b613b1)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/DuneLocationCalculationActivity.cs	(.../DuneLocationCalculationActivity.cs)	(revision eaaa2db363e980c77e18d4cbc60976511267af31)
@@ -29,7 +29,7 @@
     /// <summary>
     /// <see cref="CalculatableActivity"/> for running a dune location calculation.
     /// </summary>
-    public class DuneLocationCalculationActivity : CalculatableActivity
+    internal class DuneLocationCalculationActivity : CalculatableActivity
     {
         private readonly DuneLocationCalculation duneLocationCalculation;
         private readonly string hydraulicBoundaryDatabaseFilePath;
Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/Properties/AssemblyInfo.cs
===================================================================
diff -u -r0819cf01b494097b764677be8dd47853e38fc223 -reaaa2db363e980c77e18d4cbc60976511267af31
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/Properties/AssemblyInfo.cs	(.../AssemblyInfo.cs)	(revision 0819cf01b494097b764677be8dd47853e38fc223)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/Properties/AssemblyInfo.cs	(.../AssemblyInfo.cs)	(revision eaaa2db363e980c77e18d4cbc60976511267af31)
@@ -20,6 +20,8 @@
 // All rights reserved.
 
 using System.Reflection;
+using System.Runtime.CompilerServices;
 
 [assembly: AssemblyTitle("Ringtoets.DuneErosion.Service")]
-[assembly: AssemblyProduct("Ringtoets.DuneErosion.Service")]
\ No newline at end of file
+[assembly: AssemblyProduct("Ringtoets.DuneErosion.Service")]
+[assembly: InternalsVisibleTo("Ringtoets.DuneErosion.Service.Test")]
\ No newline at end of file