[syslog-ng]centralized loghost

I've just install syslog-ng 1.5.21 for centralizing all servers log's Here is the conf file : - - syslog-ng.conf - - options { use_dns(no); sync(0); }; source s_internal { internal(); }; source net { udp( ip(192.168.12.2) port(514) ); }; destination hosts { file( "/var/log/$HOST/$YEAR/$MONTH/$DAY/$FACILITY"\ create_dirs(yes) owner("root") group("root")\ perm(0600) dir_perm(0700) ); }; log { source(s_internal); source(net); destination(hosts); }; - - the problem is that logs go to /var/log/IP_of_$HOST/ ... Thanks for help G.