diff --git a/roles/wal-g-pg/files/wal-g-backup.service b/roles/wal-g-pg/files/wal-g-backup.service
index d563dab..69c5c9d 100644
--- a/roles/wal-g-pg/files/wal-g-backup.service
+++ b/roles/wal-g-pg/files/wal-g-backup.service
@@ -7,3 +7,4 @@ After=network-online.target
 Type=oneshot
 Environment=PGDATA=/var/lib/pgsql/data
 ExecStart=/usr/bin/wal-g-pg backup-push --config /etc/postgresql/wal-g.yml $PGDATA
+User=postgres