diff --git a/openstack/cinder/templates/backup_deployment.yaml b/openstack/cinder/templates/backup_deployment.yaml
index 1ab310de87d..d198350bfe4 100644
--- a/openstack/cinder/templates/backup_deployment.yaml
+++ b/openstack/cinder/templates/backup_deployment.yaml
@@ -88,6 +88,7 @@ template: |
               - CHOWN
           command:
           - dumb-init
+          - --single-child
           - cinder-backup
           env:
           {{- if .Values.sentry.enabled }}