Index: Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDuneAssessmentSectionCommand.cs
===================================================================
diff -u -r80b447a18c4d1abf1b4a7155f863f4faaed45ba6 -r48fe36c87dd40ff715adf4c0cf393f7390e6c993
--- Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDuneAssessmentSectionCommand.cs	(.../AddNewDemoDuneAssessmentSectionCommand.cs)	(revision 80b447a18c4d1abf1b4a7155f863f4faaed45ba6)
+++ Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDuneAssessmentSectionCommand.cs	(.../AddNewDemoDuneAssessmentSectionCommand.cs)	(revision 48fe36c87dd40ff715adf4c0cf393f7390e6c993)
@@ -23,7 +23,7 @@
 
         public void Execute(params object[] arguments)
         {
-            var project = Gui.Application.Project;
+            var project = Gui.ApplicationCore.Project;
             project.Items.Add(CreateNewDemoAssessmentSection());
             project.NotifyObservers();
         }