The entity type 'Personal' is part of a hierarchy, but does not have a discriminator value configured

I'm trying to generate migrations using the command:

dotnet ef migrations add InitialMigration --context MyContext 

and the same is returning me the following message.

  

System.InvalidOperationException: The entity type 'PersonPass' is part of a hierarchy, but does not have a discriminator value configured.

In my classes I have PessoaFisica and PessoaJuridica inheriting from Pessoa and Funcionario inheriting from PessoaFisica ( public class Funcionario : PessoaFisica ).

modelBuilder.Entity<Funcionario>()
.ToTable("Funcionario");