diff --git a/nodes/ansible/README.md b/nodes/ansible/README.md
index 89ae04c..237099b 100644
--- a/nodes/ansible/README.md
+++ b/nodes/ansible/README.md
@@ -27,11 +27,11 @@ ansible-playbook mylimbo.globals.host_maintenance.os_info
 Update.
 
 ```bash
-ansible-playbook mylimbo.globals.host_maintenance.os_update
+ansible-playbook mylimbo.globals.host_maintenance.os_update -e target=casa-mini-minion-01
 ```
 
 reboot.
 
 ```bash
-ansible-playbook mylimbo.globals.host_maintenance.os_reboot
+ansible-playbook mylimbo.globals.host_maintenance.os_reboot -e target=casa-mini-minion-01
 ```