Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresScenariosView.cs
===================================================================
diff -u -r4bf59bb3506b840b284efe0c0f4431b7876e0e5b -r964f8948f0ec59095ea9cc58fdabd706c4b17d22
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresScenariosView.cs	(.../HeightStructuresScenariosView.cs)	(revision 4bf59bb3506b840b284efe0c0f4431b7876e0e5b)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresScenariosView.cs	(.../HeightStructuresScenariosView.cs)	(revision 964f8948f0ec59095ea9cc58fdabd706c4b17d22)
@@ -128,7 +128,7 @@
             {
                 ICalculation[] calculations = data.GetCalculations().ToArray();
 
-                Dictionary<string, IList<ICalculation>> calculationsPerSegment =
+                IDictionary<string, List<ICalculation>> calculationsPerSegment =
                     StructuresHelper.CollectCalculationsPerSection(failureMechanism.Sections, calculations.Cast<StructuresCalculation<HeightStructuresInput>>());
 
                 List<HeightStructuresScenarioRow> scenarioRows =