Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/SoilProfile/MacroStabilityInwardsSoilProfileUnderSurfaceLineFactory.cs
===================================================================
diff -u -reb6d3b69267f3ae2870b25679793bbc0099338cd -r66964d0c53eb0d904f7ada3e3bbc1e9604e241e7
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/SoilProfile/MacroStabilityInwardsSoilProfileUnderSurfaceLineFactory.cs	(.../MacroStabilityInwardsSoilProfileUnderSurfaceLineFactory.cs)	(revision eb6d3b69267f3ae2870b25679793bbc0099338cd)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/SoilProfile/MacroStabilityInwardsSoilProfileUnderSurfaceLineFactory.cs	(.../MacroStabilityInwardsSoilProfileUnderSurfaceLineFactory.cs)	(revision 66964d0c53eb0d904f7ada3e3bbc1e9604e241e7)
@@ -133,13 +133,13 @@
 
         private class TempSoilLayerGeometry
         {
-            public TempSoilLayerGeometry(Point2D[] outerLoop, MacroStabilityInwardsSoilLayerData data)
+            public TempSoilLayerGeometry(IEnumerable<Point2D> outerLoop, MacroStabilityInwardsSoilLayerData data)
             {
                 OuterLoop = outerLoop;
                 Data = data;
             }
 
-            public Point2D[] OuterLoop { get; }
+            public IEnumerable<Point2D> OuterLoop { get; }
 
             public MacroStabilityInwardsSoilLayerData Data { get; }
         }