unexpected result in schema generation - enum field

<field key="marital_status" dbtype="enum" precision="'" attributes="married','married','divorced','widowed','common-law')" phptype="string" null="true" default="never married" />

CREATE TABLE `resume_form` (
  `id` mediumint(8) unsigned NOT NULL auto_increment,
  `file_number` varchar(64) NOT NULL default '',
  `last_name` varchar(64) NOT NULL default '',
  `middle_name` varchar(64) NOT NULL default '',
  `first_name` varchar(64) NOT NULL default '',
  `date_of_birth` date NOT NULL default '0000-00-00',
  `place_of_birth` varchar(64) NOT NULL default '',
  `citizenship` varchar(64) NOT NULL default '',
  `street` varchar(128) NOT NULL default '',
  `city` varchar(64) NOT NULL default '',
  `province` varchar(64) NOT NULL default '',
  `postal_code` varchar(32) NOT NULL default '',
  `country_of_residence` varchar(64) NOT NULL default '',
  `status_in_country` varchar(64) NOT NULL default '',
  `email` varchar(128) NOT NULL default '',
  `phone` varchar(64) NOT NULL default '',
  `mobile` varchar(64) NOT NULL default '',
  `marital_status` enum('never married','married','divorced','widowed','common-law') NOT NULL default 'never married',
  `children` enum('yes','no') NOT NULL default 'yes',
  `num_children` varchar(32) NOT NULL default '',
  `relatives_in_canada` enum('yes','no') NOT NULL default 'yes',
  `occupation` varchar(64) NOT NULL default '',
  `education` varchar(255) NOT NULL default '',
  `other_education` varchar(128) NOT NULL default '',
  `describe_program` text NOT NULL,
  `years_experience` enum('none','1 year','2 years','3 years','4 years','5 years and more') NOT NULL default 'none',
  `current_employer_name` varchar(64) NOT NULL default '',
  `current_employer_city` varchar(64) NOT NULL default '',
  `current_employer_country` varchar(64) NOT NULL default '',
  `current_employer_from` varchar(32) NOT NULL default '',
  `current_employer_to` varchar(32) NOT NULL default '',
  `current_employer_position` varchar(64) NOT NULL default '',
  `current_employer_job_description` text NOT NULL,
  `previous_employer1_name` varchar(64) NOT NULL default '',
  `previous_employer1_city` varchar(64) NOT NULL default '',
  `previous_employer1_country` varchar(64) NOT NULL default '',
  `previous_employer1_from` varchar(32) NOT NULL default '',
  `previous_employer1_to` varchar(32) NOT NULL default '',
  `previous_employer1_poition` varchar(64) NOT NULL default '',
  `previous_employer1_job_description` text NOT NULL,
  `previous_employer2_name` varchar(64) NOT NULL default '',
  `previous_employer2_city` varchar(64) NOT NULL default '',
  `previous_employer2_country` varchar(64) NOT NULL default '',
  `previous_employer2_from` varchar(32) NOT NULL default '',
  `previous_employer2_to` varchar(32) NOT NULL default '',
  `previous_employer2_position` varchar(64) NOT NULL default '',
  `previous_employer2_job_description` text NOT NULL,
  `previous_employer3_name` varchar(64) NOT NULL default '',
  `previous_employer3_city` varchar(64) NOT NULL default '',
  `previous_employer3_country` varchar(64) NOT NULL default '',
  `previous_employer3_from` varchar(32) NOT NULL default '',
  `previous_employer3_to` varchar(32) NOT NULL default '',
  `previous_employer3_position` varchar(64) NOT NULL default '',
  `previous_employer3_job_description` text NOT NULL,
  `english` enum('none','little','intermediate','good','fluent') NOT NULL default 'none',
  `french` enum('none','little','intermediate','good','fluent') NOT NULL default 'none',
  `resume` varchar(128) NOT NULL default '',
  `picture` varchar(128) NOT NULL default '',
  `approved_public` tinyint(1) unsigned NOT NULL default '0',
  PRIMARY KEY  (`id`)
) TYPE=MyISAM;