Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/SoilProfileUnderSurfaceLine.cs
===================================================================
diff -u -r677ec9937ae7eff73a09bf937804ad22e0dc5a4b -r133ab46a14ee9508c8dd5e4f82381da606076ae0
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/SoilProfileUnderSurfaceLine.cs	(.../SoilProfileUnderSurfaceLine.cs)	(revision 677ec9937ae7eff73a09bf937804ad22e0dc5a4b)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/SoilProfileUnderSurfaceLine.cs	(.../SoilProfileUnderSurfaceLine.cs)	(revision 133ab46a14ee9508c8dd5e4f82381da606076ae0)
@@ -25,14 +25,16 @@
 namespace Ringtoets.MacroStabilityInwards.Data
 {
     /// <summary>
-    /// A soil profile for which it's soil layers have been adapted using a surface line.
+    /// A soil profile for which its soil layers have been adapted using a surface line.
     /// </summary>
     public class SoilProfileUnderSurfaceLine
     {
         /// <summary>
         /// Creates a new instance of <see cref="SoilProfileUnderSurfaceLine"/>.
         /// </summary>
         /// <param name="layersUnderSurfaceLine">The layers in the profile.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="layersUnderSurfaceLine"/>
+        /// is <c>null</c>.</exception>
         public SoilProfileUnderSurfaceLine(IEnumerable<SoilLayerUnderSurfaceLine> layersUnderSurfaceLine)
         {
             if (layersUnderSurfaceLine == null)