When creating a calendar entry I want to add a location. So when entering the location, it will not autocomplete.

I am using an external LDAP server for my GAL - the locations are entries in that LDAP server.

When I type in the full email address of the location it will show me free-busy, no problem.. If I type the location in as a 'person' it will autocomplete, but when I type in as a 'location' it will not complete.. any ideas?