diff --git a/docs/runbooks/pbs-deployment.md b/docs/runbooks/pbs-deployment.md
index 0906e99..9d0646b 100644
--- a/docs/runbooks/pbs-deployment.md
+++ b/docs/runbooks/pbs-deployment.md
@@ -199,11 +199,15 @@ namespace per hypervisor up front:
 
 ```bash
 for h in pfi-pve nh3-pve esh-pve esh-pve-nas sfsrv-ana; do
-  proxmox-backup-manager datastore namespace create backups $h
+  proxmox-backup-manager namespace create backups $h
 done
-proxmox-backup-manager datastore namespace list backups
+proxmox-backup-manager namespace list backups
 ```
 
+(If the CLI errors — subcommand names shift between PBS versions —
+use the web UI: Datastore → backups → Content → **Add NS**. Works
+reliably regardless of version.)
+
 Each PVE client later (Phase 2.1, 3.1, 4) sets its Namespace field to
 its own hostname when configuring the PBS storage.