SQL Error : 1054 Unknown column 'du' in 'where clause'

select tour_name as title, router as keyword, description as descr, image from agt_tour_tour where tour_id=du-lich-phu-quoc-thien-duong-bien-dao-3n2d

Line : 84
File : /home/kynghi/public_html/skin2019/metaheader/index.php