Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresScenariosView.cs
===================================================================
diff -u -re4e785f127ce9a2d0d1734c1b51e02d910a31bbe -r183d1e7ed095ea4e8024068bc4ddfcf3ac6997d3
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresScenariosView.cs	(.../HeightStructuresScenariosView.cs)	(revision e4e785f127ce9a2d0d1734c1b51e02d910a31bbe)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresScenariosView.cs	(.../HeightStructuresScenariosView.cs)	(revision 183d1e7ed095ea4e8024068bc4ddfcf3ac6997d3)
@@ -130,7 +130,7 @@
                 ICalculation[] calculations = data.GetCalculations().ToArray();
 
                 Dictionary<string, IList<ICalculation>> calculationsPerSegment =
-                    StructuresHelper.CollectCalculationsPerSection(failureMechanism.Sections, calculations.OfType<StructuresCalculation<HeightStructuresInput>>());
+                    StructuresHelper.CollectCalculationsPerSection(failureMechanism.Sections, calculations.Cast<StructuresCalculation<HeightStructuresInput>>());
 
                 List<HeightStructuresScenarioRow> scenarioRows =
                     FailureMechanism.SectionResults.Select(sectionResult => new HeightStructuresScenarioRow(sectionResult)).ToList();