Index: Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs
===================================================================
diff -u -rb13759ad077f9e2b4104de000b5bdeafa9abe358 -r7585d2fd78627d94d55ffa16423af90a91e4efd4
--- Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs	(.../AddNewDemoAssessmentSectionCommand.cs)	(revision b13759ad077f9e2b4104de000b5bdeafa9abe358)
+++ Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs	(.../AddNewDemoAssessmentSectionCommand.cs)	(revision 7585d2fd78627d94d55ffa16423af90a91e4efd4)
@@ -48,6 +48,7 @@
 using Ringtoets.Integration.Plugin.Handlers;
 using Ringtoets.MacroStabilityInwards.Data;
 using Ringtoets.MacroStabilityInwards.Data.SoilProfile;
+using Ringtoets.MacroStabilityInwards.Primitives;
 using Ringtoets.Piping.Data;
 using Ringtoets.Piping.Data.SoilProfile;
 using Ringtoets.Piping.Plugin.FileImporter;
@@ -440,7 +441,7 @@
                     {
                         new MacroStabilityInwardsSoilLayer1D(30.1267)
                         {
-                            Data =
+                            Data = new MacroStabilityInwardsSoilLayerData
                             {
                                 MaterialName = "1D Layer",
                                 IsAquifer = true
@@ -476,7 +477,7 @@
                                 })
                             })
                         {
-                            Data =
+                            Data = new MacroStabilityInwardsSoilLayerData
                             {
                                 MaterialName = "2D Layer"
                             }