diff --git a/ansible/backup.sh.j2 b/ansible/backup.sh.j2
index 1b64fa5..fb6277d 100644
--- a/ansible/backup.sh.j2
+++ b/ansible/backup.sh.j2
@@ -8,7 +8,7 @@ FILENAME="e_ticket_${DATE}.sql.gz"
 KEEP_DAYS=1
 
 # Dump database via Docker
-docker compose -f /var/www/e-ticket/docker-compose-prod.yml exec -T database pg_dump -U {{ vault_postgres_user }} {{ vault_postgres_db }} | gzip > "${BACKUP_DIR}/${FILENAME}"
+docker compose -f /var/www/e-ticket/docker-compose-prod.yml exec -T db-master pg_dump -U {{ db_user | default('e-ticket') }} {{ db_name | default('e-ticket') }} | gzip > "${BACKUP_DIR}/${FILENAME}"
 
 # Check if backup was created
 if [ -f "${BACKUP_DIR}/${FILENAME}" ] && [ -s "${BACKUP_DIR}/${FILENAME}" ]; then