Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsCalculation.cs
===================================================================
diff -u -rd57b5fdfd92270ac6eff490b438bbe90f0296a4d -r6df492af2166d167f1a154b7997c85a4118b1759
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsCalculation.cs	(.../MacroStabilityInwardsCalculation.cs)	(revision d57b5fdfd92270ac6eff490b438bbe90f0296a4d)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsCalculation.cs	(.../MacroStabilityInwardsCalculation.cs)	(revision 6df492af2166d167f1a154b7997c85a4118b1759)
@@ -29,7 +29,7 @@
     /// <summary>
     /// This class holds information about a calculation for the <see cref="MacroStabilityInwardsFailureMechanism"/>.
     /// </summary>
-    public class MacroStabilityInwardsCalculation : CloneableObservable, ICalculation
+    public class MacroStabilityInwardsCalculation : CloneableObservable, ICalculation<MacroStabilityInwardsInput>
     {
         /// <summary>
         /// Creates a new instance of <see cref="MacroStabilityInwardsCalculation"/> with default values set for some of the parameters.