Create an anonymous multi user chat room

I am trying to create an anonymous room with the smack libraries and I guess I don't know the magic settings to make this happen, here is the FormField I am submitting to the MultiUserChat room, can anyone provide insight into why this wouldn't work?

Form existingForm = chatRoom.getConfigurationForm();
Form submitForm = existingForm.createAnswerForm(); 
FormField formField = new FormField("muc#roomconfig_canAnyoneDiscoverJID");
formField.addValue("0");
submitForm.addField(formField); 
chatRoom.sendConfigurationForm(submitForm);

Interestingly when I output all available fields from the existing form "canAnyoneDiscoverJID" is not in the list. The admin console of OpenFire does have check box for this though.

fieldVariable = muc#roomconfig_roomname

fieldVariable = muc#roomconfig_roomdesc

fieldVariable = muc#roomconfig_changesubject

fieldVariable = muc#roomconfig_maxusers

fieldVariable = muc#roomconfig_presencebroadcast

fieldVariable = muc#roomconfig_publicroom

fieldVariable = muc#roomconfig_persistentroom

fieldVariable = muc#roomconfig_moderatedroom

fieldVariable = muc#roomconfig_membersonly

fieldVariable = muc#roomconfig_allowinvites

fieldVariable = muc#roomconfig_passwordprotectedroom

fieldVariable = muc#roomconfig_roomsecret

fieldVariable = muc#roomconfig_whois

fieldVariable = muc#roomconfig_enablelogging

fieldVariable = x-muc#roomconfig_reservednick

fieldVariable = x-muc#roomconfig_canchangenick

fieldVariable = x-muc#roomconfig_registration

fieldVariable = muc#roomconfig_roomadmins

fieldVariable = muc#roomconfig_roomowners