After Anderlecht's Imoh Ezekiel had cancelled out Harry Kane's first-half opener in the 72nd minute, Dembele fired home an unstoppable left-foot shot from outside the area. Anderlecht are 3rd in Group J behind Spurs and Monaco.
Club Brugge fared better on Thursday night beating Legia Warsaw 1-0. Meunier scored. Club Brugge are now 3rd in Group D.