freeradius 3.0.4 CentOS 7.2 AD

Hello, we have freeradius 3.0.4 on a centos 7.2 machine with ldap authentication against edirectory running for a long time. Now we want to authenticate against AD. We followed the intructions on http://deployingradius.com/documents/configuration/active_directory.html ntlm_auth returns: NT_STATUS_OK: Success (0x0). Radiusd -X returns the following error: /etc/raddb/mods-config/files/authorize[1]: Parse error (check) for entry DEFAULT: Unknown value 'ntlm_auth' for attribute 'Auth-Type' What is the reason? Regards, Hubert