diff --git a/src/Digdir.Domain.Dialogporten.Application/Features/V1/ServiceOwner/Dialogs/Commands/Purge/PurgeDialogCommandValidator.cs b/src/Digdir.Domain.Dialogporten.Application/Features/V1/ServiceOwner/Dialogs/Commands/Purge/PurgeDialogCommandValidator.cs
index 6c53c3cac..575a286a8 100644
--- a/src/Digdir.Domain.Dialogporten.Application/Features/V1/ServiceOwner/Dialogs/Commands/Purge/PurgeDialogCommandValidator.cs
+++ b/src/Digdir.Domain.Dialogporten.Application/Features/V1/ServiceOwner/Dialogs/Commands/Purge/PurgeDialogCommandValidator.cs
@@ -7,6 +7,7 @@ internal sealed class PurgeDialogCommandValidator : AbstractValidator<PurgeDialo
     public PurgeDialogCommandValidator()
     {
         RuleFor(x => x.DialogId)
-            .NotEqual(default(Guid));
+            .NotEqual(Guid.Empty)
+            .WithMessage($"{{PropertyName}} was either badly formatted or {Guid.Empty}");
     }
 }