diff --git a/docker/mariadb/backup.sh b/docker/mariadb/backup.sh
index a039d84e85..e56450171f 100644
--- a/docker/mariadb/backup.sh
+++ b/docker/mariadb/backup.sh
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 
 set -eu
+set -o pipefail
 
 # Execute a full backup
 backup_full() {