Anybody ever seen this?

[zimbra@server~]$ zmprov ms server.domain.com -zimbraServiceEnabled antispam
ERROR: service.FAILURE (system failure: unable to modify attrs: [LDAP: error code 16 - modify/delete: zimbraServiceEnabled: no such value])
If I try to modify via the GUI after I uncheck AntiSpam and hit save and refresh then it's back to being checked.