Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs
===================================================================
diff -u -ra494bde768f1b989d31bff6a801a1816d6f9692e -r1e2a095affbb24361723e68107d3bf494276d6a2
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs	(.../StabilityPointStructuresCalculationActivity.cs)	(revision a494bde768f1b989d31bff6a801a1816d6f9692e)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs	(.../StabilityPointStructuresCalculationActivity.cs)	(revision 1e2a095affbb24361723e68107d3bf494276d6a2)
@@ -32,7 +32,7 @@
     /// <summary>
     /// <see cref="CalculatableActivity"/> for running a structures stability point calculation.
     /// </summary>
-    public class StabilityPointStructuresCalculationActivity : CalculatableActivity
+    internal class StabilityPointStructuresCalculationActivity : CalculatableActivity
     {
         private readonly StructuresCalculation<StabilityPointStructuresInput> calculation;
         private readonly StabilityPointStructuresCalculationService calculationService;