Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/SoilProfile/MacroStabilityInwardsSoilProfile2DLayersHelperTest.cs
===================================================================
diff -u -r66894d34e58e0db658fa3183df8792ed244ccda3 -r686c5eeaad900a6bb627733de8c21bd607f130aa
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/SoilProfile/MacroStabilityInwardsSoilProfile2DLayersHelperTest.cs	(.../MacroStabilityInwardsSoilProfile2DLayersHelperTest.cs)	(revision 66894d34e58e0db658fa3183df8792ed244ccda3)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/SoilProfile/MacroStabilityInwardsSoilProfile2DLayersHelperTest.cs	(.../MacroStabilityInwardsSoilProfile2DLayersHelperTest.cs)	(revision 686c5eeaad900a6bb627733de8c21bd607f130aa)
@@ -99,7 +99,7 @@
             };
 
             // Call
-            IEnumerable<IMacroStabilityInwardsSoilLayer2D> flatLayers = MacroStabilityInwardsSoilProfile2DLayersHelper.GetLayersRecursively(layers);
+            IEnumerable<MacroStabilityInwardsSoilLayer2D> flatLayers = MacroStabilityInwardsSoilProfile2DLayersHelper.GetLayersRecursively(layers);
 
             // Assert
             CollectionAssert.AreEqual(new[]