Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsGuiPlugin.cs
===================================================================
diff -u -rf72f906a6875250a4378945ce814997ff8aaf1a7 -rf01bfd8d4c0541a96d57071b397c39792a99da26
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsGuiPlugin.cs	(.../RingtoetsGuiPlugin.cs)	(revision f72f906a6875250a4378945ce814997ff8aaf1a7)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsGuiPlugin.cs	(.../RingtoetsGuiPlugin.cs)	(revision f01bfd8d4c0541a96d57071b397c39792a99da26)
@@ -312,7 +312,7 @@
             {
                 Text = context => RingtoetsCommonDataResources.ReferenceLine_DisplayName,
                 Image = context => RingtoetsCommonFormsResources.ReferenceLineIcon,
-                ForeColor = context => context.WrappedData == null ?
+                ForeColor = context => context.WrappedData.ReferenceLine == null ?
                                            Color.FromKnownColor(KnownColor.GrayText) :
                                            Color.FromKnownColor(KnownColor.ControlText),
                 ContextMenuStrip = (nodeData, parentData, treeViewControl) =>