diff --git a/entrypoint.sh b/entrypoint.sh
index a5be5e7..f04865d 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -8,7 +8,7 @@ cat <<EOF > env.sh
 BACKUP_SOURCES="${BACKUP_SOURCES:-/backup}"
 BACKUP_CRON_EXPRESSION="${BACKUP_CRON_EXPRESSION:-@daily}"
 BACKUP_BUCKET_NAME="${BACKUP_BUCKET_NAME:-}"
-BACKUP_FILENAME="$(date +"${BACKUP_FILENAME:-latest.tar.gz}")"
+BACKUP_FILENAME="$(date +"${BACKUP_FILENAME:-backup-%F.tar.gz}")"
 BACKUP_ARCHIVE="${BACKUP_ARCHIVE}"
 BACKUP_WAIT_SECONDS="${BACKUP_WAIT_SECONDS:-0}"
 BACKUP_HOSTNAME="${BACKUP_HOSTNAME:-$(hostname)}"