InitialValues with redux-form

[ticketapp]

I'm trying to add an initial value as I'm doing it with a standard redux-form, but nothing happens.
It is not documented, how can I achieve this?
Here is the snippet of code:

function mapStateToProps(state) {
  const firstName = state.auth.firstName;
  const initialValues = {
    firstName
  };
  return {
    initialValues
  };
}

export default connect(mapStateToProps)(
  reduxForm({ form: "Form" })(Form)
);