MySQL error in file: /engine/modules/showcat.php at line 33

Error Number: 1064

The Error returned was:
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 '29 ORDER BY date DESC LIMIT 0, 5' at line 1

SQL query:

SELECT id, title, short_story, full_story, xfields, category, alt_name, date FROM dle_post WHERE category = 6,29 ORDER BY date DESC LIMIT 0, 5