Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsInputValidator.cs
===================================================================
diff -u -r918c75f75b9d067f8c244fcb279c7e76a292ff66 -r9655570a15a7fff650337906cb33de8042312c29
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsInputValidator.cs	(.../MacroStabilityInwardsInputValidator.cs)	(revision 918c75f75b9d067f8c244fcb279c7e76a292ff66)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsInputValidator.cs	(.../MacroStabilityInwardsInputValidator.cs)	(revision 9655570a15a7fff650337906cb33de8042312c29)
@@ -94,7 +94,7 @@
         private static IEnumerable<string> ValidateZoneBoundaries(MacroStabilityInwardsInput inputParameters)
         {
             if (!inputParameters.CreateZones
-                || inputParameters.ZoningBoundariesDeterminationType == MacroStabilityInwardsZoningBoundariesDeterminationType.Manual)
+                || inputParameters.ZoningBoundariesDeterminationType == MacroStabilityInwardsZoningBoundariesDeterminationType.Automatic)
             {
                 yield break;
             }