Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsCalculation.cs
===================================================================
diff -u -r2bdb4415eafe18b5780dbc32408a7317d7b537e6 -r3d30a9febb6492e54f2082bf0a21a1602717b098
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsCalculation.cs	(.../MacroStabilityInwardsCalculation.cs)	(revision 2bdb4415eafe18b5780dbc32408a7317d7b537e6)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsCalculation.cs	(.../MacroStabilityInwardsCalculation.cs)	(revision 3d30a9febb6492e54f2082bf0a21a1602717b098)
@@ -37,7 +37,7 @@
         public MacroStabilityInwardsCalculation()
         {
             Name = RingtoetsCommonDataResources.Calculation_DefaultName;
-            InputParameters = new MacroStabilityInwardsInput();
+            InputParameters = new MacroStabilityInwardsInput(new MacroStabilityInwardsInput.ConstructionProperties());
             Comments = new Comment();
         }