diff --git a/docs/modules/ROOT/pages/how-tos/prebackuppod.adoc b/docs/modules/ROOT/pages/how-tos/prebackuppod.adoc
index 4f8d5201f..37a21b4ec 100644
--- a/docs/modules/ROOT/pages/how-tos/prebackuppod.adoc
+++ b/docs/modules/ROOT/pages/how-tos/prebackuppod.adoc
@@ -28,7 +28,7 @@ spec:
               value: topsecret
             - name: DB_HOST
               value: mariadb.example.com
-          image: mariadb
+          image: mariadb:10.4
           command:
             - 'sleep'
             - 'infinity'