Index: Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationActivityTest.cs
===================================================================
diff -u -r695a6afe5bb2d4b770029c476c8cea049a6a6e59 -r57cf41dc262bf62fdf1dddc550884a2f79163d4e
--- Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationActivityTest.cs	(.../DesignWaterLevelCalculationActivityTest.cs)	(revision 695a6afe5bb2d4b770029c476c8cea049a6a6e59)
+++ Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationActivityTest.cs	(.../DesignWaterLevelCalculationActivityTest.cs)	(revision 57cf41dc262bf62fdf1dddc550884a2f79163d4e)
@@ -93,7 +93,7 @@
                                                                    calculationMessageProvider);
 
             // Assert
-            Assert.IsInstanceOf<HydraRingActivityBase>(activity);
+            Assert.IsInstanceOf<CalculatableActivity>(activity);
             Assert.AreSame(activityDescription, activity.Description);
             Assert.IsNull(activity.ProgressText);
             Assert.AreEqual(ActivityState.None, activity.State);