Closes #5886
@ -10,7 +10,7 @@ namespace NzbDrone.Core.CustomFormats
{
public LanguageSpecificationValidator()
RuleFor(c => c.Value).NotEmpty();
RuleFor(c => c.Value).GreaterThanOrEqualTo(0);
RuleFor(c => c.Value).Custom((value, context) =>
if (!Language.All.Any(o => o.Id == value))