Index: Ringtoets/Common/src/Ringtoets.Common.Forms/Views/GeneralResultFaultTreeIllustrationPointView.cs
===================================================================
diff -u -r68ad4c0477e2ae7f325fef005b88d5be5c563840 -ra163c5f082694baf5cd491ea36baf6fb040fe868
--- Ringtoets/Common/src/Ringtoets.Common.Forms/Views/GeneralResultFaultTreeIllustrationPointView.cs	(.../GeneralResultFaultTreeIllustrationPointView.cs)	(revision 68ad4c0477e2ae7f325fef005b88d5be5c563840)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/Views/GeneralResultFaultTreeIllustrationPointView.cs	(.../GeneralResultFaultTreeIllustrationPointView.cs)	(revision a163c5f082694baf5cd491ea36baf6fb040fe868)
@@ -127,9 +127,9 @@
                 return;
             }
 
-            string closingSituation = generalResult.TopLevelIllustrationPoints.HasDuplicates(p => p.ClosingSituation)
-                                          ? string.Empty
-                                          : topLevelFaultTreeIllustrationPoint.ClosingSituation;
+            string closingSituation = generalResult.TopLevelIllustrationPoints.HasMultipleUniqueValues(p => p.ClosingSituation)
+                                          ? topLevelFaultTreeIllustrationPoint.ClosingSituation
+                                          : string.Empty;
 
             var faultTreeIllustrationPoint = selection.Data as FaultTreeIllustrationPoint;
             if (faultTreeIllustrationPoint != null)