Error after module activation

Greetings,
Just installed the module, after activating the module the following error was given.

user warning: Column length too big for column 'policy' (max = 255); use BLOB or TEXT instead query: CREATE TABLE password_policy ( `pid` INT NOT NULL auto_increment, `name` VARCHAR(64) NOT NULL DEFAULT '', `description` VARCHAR(255) DEFAULT '', `enabled` TINYINT NOT NULL DEFAULT 0, `policy` VARCHAR(1024) NOT NULL DEFAULT '', `created` INT NOT NULL DEFAULT 0, `expiration` INT DEFAULT NULL, `warning` VARCHAR(64) DEFAULT NULL, PRIMARY KEY (pid) ) /*!40100 DEFAULT CHARACTER SET UTF8 */ in /home/xxxxx/public_html/drpl/includes/database.inc on line 515.

Below the error box was:
* Password policy module successfully installed. Please review the available configuration settings.
* The configuration options have been saved.

Drupal - 6.6

The error report doesn't show on 6.x-1.x-dev

Regards,

Gary