Index: Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs
===================================================================
diff -u -rc116b4635603c6d5bbdedb837f68fd3839ece6ca -re8d521c72f8cd2fa9e02dc14c38700bd051ac838
--- Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs	(.../AddNewDemoAssessmentSectionCommand.cs)	(revision c116b4635603c6d5bbdedb837f68fd3839ece6ca)
+++ Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs	(.../AddNewDemoAssessmentSectionCommand.cs)	(revision e8d521c72f8cd2fa9e02dc14c38700bd051ac838)
@@ -5,6 +5,8 @@
 using Core.Common.Controls.Commands;
 using Core.Common.Gui;
 using Core.Common.Utils.IO;
+
+using Ringtoets.Common.Data;
 using Ringtoets.Common.Forms.PresentationObjects;
 using Ringtoets.Common.IO;
 using Ringtoets.HydraRing.Data;
@@ -55,7 +57,7 @@
 
         private AssessmentSection CreateNewDemoAssessmentSection()
         {
-            var demoAssessmentSection = new AssessmentSection
+            var demoAssessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike)
             {
                 Name = "Demo traject"
             };