diff --git a/confluent_server/confluent/messages.py b/confluent_server/confluent/messages.py
index 0c66956b..e3f20776 100644
--- a/confluent_server/confluent/messages.py
+++ b/confluent_server/confluent/messages.py
@@ -674,6 +674,7 @@ class PowerState(ConfluentChoiceMessage):
         'off',
         'reset',
         'boot',
+        'shutdown',
         'diag',
     ])
     keyname = 'state'