Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/PropertyClasses/OvertoppingRateOutputProperties.cs
===================================================================
diff -u -rc072c430cf3193c3ada31a81bd0cd4e75f4a068a -r390c486bb4cd693ae2f2eaf82a30efcb51480048
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/PropertyClasses/OvertoppingRateOutputProperties.cs	(.../OvertoppingRateOutputProperties.cs)	(revision c072c430cf3193c3ada31a81bd0cd4e75f4a068a)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/PropertyClasses/OvertoppingRateOutputProperties.cs	(.../OvertoppingRateOutputProperties.cs)	(revision 390c486bb4cd693ae2f2eaf82a30efcb51480048)
@@ -186,8 +186,8 @@
         {
             get
             {
-                List<string> listOfClosingSituations = data.GeneralResult.TopLevelIllustrationPoints.Select(topLevelFaultTreeIllustrationPoint =>
-                                                                                                                topLevelFaultTreeIllustrationPoint.ClosingSituation).ToList();
+                IEnumerable<string> listOfClosingSituations = data.GeneralResult.TopLevelIllustrationPoints.Select(topLevelFaultTreeIllustrationPoint =>
+                                                                                                                       topLevelFaultTreeIllustrationPoint.ClosingSituation).ToList();
 
                 return data.GeneralResult.TopLevelIllustrationPoints.Select(point => new TopLevelFaultTreeIllustrationPointProperties(point, listOfClosingSituations)).ToArray();
             }