Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs
===================================================================
diff -u -rb4a21813310e188e65bffa91d101131cbd4e0d5b -r4980d25a9a8c59dc21b73e181b83af5399a45255
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision b4a21813310e188e65bffa91d101131cbd4e0d5b)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision 4980d25a9a8c59dc21b73e181b83af5399a45255)
@@ -467,8 +467,8 @@
 
             if (isNestedGroup)
             {
-                builder.AddDeleteItem();
-                builder.AddSeparator();
+                builder.AddDeleteItem()
+                       .AddSeparator();
             }
 
             return builder.AddCollapseAllItem()