diff --git a/docs/zzz_evobackup b/docs/zzz_evobackup
index 099beae..3706aaf 100755
--- a/docs/zzz_evobackup
+++ b/docs/zzz_evobackup
@@ -97,6 +97,10 @@ mkdir -p -m 700 /home/backup
 ## example with pg_dumpall (warning: you need space in ~postgres)
 # su - postgres -c "pg_dumpall > ~/pg.dump.bak"
 # mv ~postgres/pg.dump.bak /home/backup/
+## another method with gzip directly piped
+# cd /var/lib/postgresql
+# sudo -u postgres pg_dumpall | gzip > /home/backup/pg.dump.bak.gz
+# cd -
 
 ## example with all tables from MYBASE excepts TABLE1 and TABLE2
 # pg_dump -p 5432 -h 127.0.0.1 -U USER --clean -F t --inserts -f /home/backup/pg-backup.tar -t 'TABLE1' -t 'TABLE2' MYBASE