Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs
===================================================================
diff -u -r9cd1f99915772a8d9990c31e281b70dd663b4e2d -r57cf41dc262bf62fdf1dddc550884a2f79163d4e
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs	(.../StabilityPointStructuresCalculationActivity.cs)	(revision 9cd1f99915772a8d9990c31e281b70dd663b4e2d)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs	(.../StabilityPointStructuresCalculationActivity.cs)	(revision 57cf41dc262bf62fdf1dddc550884a2f79163d4e)
@@ -20,7 +20,6 @@
 // All rights reserved.
 
 using System;
-using Core.Common.Base.Service;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Hydraulics;
 using Ringtoets.Common.Data.Structures;
@@ -31,9 +30,9 @@
 namespace Ringtoets.StabilityPointStructures.Service
 {
     /// <summary>
-    /// <see cref="Activity"/> for running a structures stability point calculation.
+    /// <see cref="CalculatableActivity"/> for running a structures stability point calculation.
     /// </summary>
-    public class StabilityPointStructuresCalculationActivity : HydraRingActivityBase
+    public class StabilityPointStructuresCalculationActivity : CalculatableActivity
     {
         private readonly StructuresCalculation<StabilityPointStructuresInput> calculation;
         private readonly StabilityPointStructuresCalculationService calculationService;