Index: Application/Ringtoets/src/Application.Ringtoets.Storage/Create/ClosingStructures/ClosingStructuresFailureMechanismCreateExtensions.cs
===================================================================
diff -u -r531a5378e2e0c670c8e4bc361765d5d63f429a62 -r811967790aed0c6617f36c2135016a5bc4aa8fcc
--- Application/Ringtoets/src/Application.Ringtoets.Storage/Create/ClosingStructures/ClosingStructuresFailureMechanismCreateExtensions.cs	(.../ClosingStructuresFailureMechanismCreateExtensions.cs)	(revision 531a5378e2e0c670c8e4bc361765d5d63f429a62)
+++ Application/Ringtoets/src/Application.Ringtoets.Storage/Create/ClosingStructures/ClosingStructuresFailureMechanismCreateExtensions.cs	(.../ClosingStructuresFailureMechanismCreateExtensions.cs)	(revision 811967790aed0c6617f36c2135016a5bc4aa8fcc)
@@ -46,6 +46,7 @@
             AddEntitiesForForeshoreProfiles(mechanism.ForeshoreProfiles, entity, registry);
             AddEntitiesForClosingStructures(mechanism.ClosingStructures, entity, registry);
             AddEntitiesForFailureMechanismMeta(mechanism.GeneralInput, entity);
+            entity.CalculationGroupEntity = mechanism.CalculationsGroup.Create(registry, 0);
 
             return entity;
         }