Erreur : You have an error in your SQL syntax

erreur : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '12' at line 8
n°: 1064
Date: Wednesday 05th of December 2007 04:31:22 PM
---------------Query---------------
dans ce script:
SELECT rafia_news.*,COUNT(rafia_comment.news_id) as numrows
FROM rafia_news LEFT JOIN rafia_comment
ON rafia_news.id = rafia_comment.news_id
WHERE rafia_news.allow = 'yes'
AND rafia_news.inindex = '1'
GROUP BY rafia_news.id
ORDER BY rafia_news.id DESC
LIMIT ,12

aidez moi à regler ce probleme
merci
un peu d'explication svp