Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/SoilProfile/MacroStabilityInwardsSoilProfile2DTest.cs
===================================================================
diff -u -r1f04a4b4d98fc797240cd4fb8a099995b9557592 -ra21cbe87fb105c95151fcc6e0b04d58948580c0f
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/SoilProfile/MacroStabilityInwardsSoilProfile2DTest.cs	(.../MacroStabilityInwardsSoilProfile2DTest.cs)	(revision 1f04a4b4d98fc797240cd4fb8a099995b9557592)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/SoilProfile/MacroStabilityInwardsSoilProfile2DTest.cs	(.../MacroStabilityInwardsSoilProfile2DTest.cs)	(revision a21cbe87fb105c95151fcc6e0b04d58948580c0f)
@@ -317,10 +317,11 @@
                 CreateRandomRing(random.Next())
             })
             {
-                Data =
+                Data = new MacroStabilityInwardsSoilLayerData
                 {
                     Color = Color.FromKnownColor(random.NextEnumValue<KnownColor>())
-                }
+                },
+                NestedLayers = Enumerable.Empty<IMacroStabilityInwardsSoilLayer2D>()
             };
         }
 
@@ -331,7 +332,7 @@
                 soilLayer.Holes[0]
             })
             {
-                Data =
+                Data = new MacroStabilityInwardsSoilLayerData
                 {
                     Color = soilLayer.Data.Color
                 }