Problem with RFC2377 schema upgrading from 2.0.7 to 2.0.8

[Alberto Brosich <brosich@univ.trieste.it>]

I wrote the following schema file for RFC2377 definition


objectclass ( 1.3.6.1.1.2.1 NAME 'domainNameForm'
        DESC 'RFC2377: domainNameForm object'
        SUP domain AUXILIARY
        MUST dc )

objectclass ( 1.3.6.1.1.2.2 NAME 'dcOrganizationNameForm'
        DESC 'RFC2377: dcOrganizationNameForm object'
        SUP organization AUXILIARY MUST dc )

objectclass ( 1.3.6.1.1.2.3 NAME 'dcOrganizationalUnitNameForm'
        DESC 'RFC2377: dcOrganizationalUnitNameForm object'
        SUP organizationalUnit AUXILIARY MUST dc )

objectclass ( 1.3.6.1.1.2.4 NAME 'dcLocalityNameForm'
        DESC 'RFC2377: dcLocalityNameForm object'
        SUP locality AUXILIARY MUST dc )

objectclass ( 1.3.6.1.1.2.5 NAME 'uidOrganizationalPersonNameForm'
        DESC 'RFC2377: uidOrganizationalPersonNameForm object'
        SUP organizationalPerson AUXILIARY MUST uid )


With Openldap 2.0.7 works all fine.
Upgrading to version 2.0.8 I obtain the following error:

/etc/openldap/schema/2377.schema: line 9: ObjectClass inappropriate
SUPerior: "domain"

This is the beginning of slapd.conf

# $OpenLDAP: pkg/ldap/servers/slapd/slapd.conf,v 1.8.8.4 2000/08/26
17:06:18 kurt Exp $
#
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
include         /mail/ldap/etc/openldap/schema/core.schema
include         /mail/ldap/etc/openldap/schema/cosine.schema
include         /mail/ldap/etc/openldap/schema/inetorgperson.schema
include         /mail/ldap/etc/openldap/schema/misc.schema
include         /mail/ldap/etc/openldap/schema/nis.schema
include         /mail/ldap/etc/openldap/schema/2377.schema


Where is the error/s?

Alberto Brosich
System Manager
CSIA - University of Trieste
Italy