Custom Post Type URL Rewrites

Hey Everyone, I have made a custom post type

register_post_type('services', array(
	'label' => __('Services'),
	'singular_label' => __('Services'),
	'public' => true,
	'show_ui' => true,
	'capability_type' => 'post',
	'hierarchical' => false,
	'rewrite' => false,
	'query_var' => false,
	'supports' => array( 'title', 'editor', 'thumbnail', 'excerpt', 'custom-fields' )
	));

And I am trying to rewrite the URLS, but every time I change rewrite from false to true, I get this error:

Fatal error: Call to a member function add_rewrite_tag() on a non-object in /home/sandbox/public_html/tcc/wp-includes/rewrite.php on line 51

What am I doing wrong!?!! Can anyone help???