Getting wierd Incorrect Table definition when trying to install this skeleton module.. does anything look wrong?

gistfile1.txt

<?php
// $Id$

/**
 * Implementation of hook_schema()
 *
 * TODO: Describe the module's data model
 *
 */
function tcb_entities_schema() {
    $schema = array();
    $schema['tcb_subject'] = array(
        'description' => 'Subject',
        'fields' => array(
          'subject_id' => array(
            'description' => '',
            'type' => 'serial',
            'not null' => TRUE,
          ),
          'title' => array(
            'description' => '',
            'type' => 'char',
            'length' => 200,
            'not null' => TRUE,
          ),
        ),
        'primary_key' => array('subject_id'),
    );
    return $schema;
}

/**
 * Implementation of hook_install()
 *
 * Perform initial setup tasks
 *
 */
function tcb_entities_install() {
    
}

/**
 * Implements hook_uninstall().
 */
function tcb_entities_uninstall() {
    drupal_uninstall_schema('tcb_entities');
}