diff --git a/apps/naviya/30-backup.yaml b/apps/naviya/30-backup.yaml
index 30247dc..683fc92 100644
--- a/apps/naviya/30-backup.yaml
+++ b/apps/naviya/30-backup.yaml
@@ -46,7 +46,19 @@ spec:
                 - |
                   umask 077
                   stamp="$(date -u +%Y%m%dT%H%M%SZ)"
-                  pg_dump --format=custom --no-owner --no-acl "$DATABASE_URL" > "/backups/application-metier-${stamp}.dump"
+                  target="/backups/application-metier-${stamp}.dump"
+                  tmp="${target}.tmp.$$"
+
+                  cleanup() {
+                    rm -f "$tmp"
+                  }
+                  trap cleanup EXIT
+
+                  pg_dump --format=custom --no-owner --no-acl --file="$tmp" "$DATABASE_URL"
+                  test -s "$tmp"
+                  mv "$tmp" "$target"
+                  trap - EXIT
+                  ls -lh "$target"
                   find /backups -type f -name 'application-metier-*.dump' -mtime +14 -delete
               env:
                 - name: DATABASE_URL