Could not execute SQL: Unknown column 'he' in 'where clause'

SELECT a.id, a.name, a.alias, a.catid, a.thumb, a.short_desc, a.created, a.hits, a.enable, text_video , c.name AS category_name FROM lhm_project AS a INNER JOIN lhm_project_categories AS c ON c.id = a.catid WHERE a.catid=he AND a.enable = 1 AND c.enable = 1 ORDER BY a.created DESC LIMIT 0,9999