add-on domains change to parked when account restored?

For some reason when I restore accounts using the restore from backup option in cpanel, I'm finding that add-on domains (previously pointed at a subdirectory) are being restored as parked domains? Does anyone know why or better yet, have a solution? It's not a huge deal to recreate them all manually, but it would be nice to have the backup-restore work correctly if it's possible to save a little work. Many thanks in advance for any ideas.