Inter, Tottenham needed only one draw to reach the knife in his pocket money, Eriksen took a hard line until he broke his side in the 80th minute.
The win means Tottenham and Inter had seven points in Group B, but Tottenham headed the Italians to second place.
Nevertheless, Tottenham needs to have everything, but Barcelona, which is only one win against the group games, will guarantee a third appearance in the last game of the matches next month.
At home the bottom hut PSV.
Tottenham XI: Lloris, Aurier, Vertonghen, Alderweireld, Davies, Lucas Moura, Sissoko, Winks, Lamela, Alli, Kane.
Subs: Gazzaniga, Rose, Son, Other, Walker-Peters, Llorente, Eriksen.
Inter Milan XI: Handanovic, D & # 39; Ambrosio, de Vrij, Skriniar, Asamoah, Vecino, Brozovic, Politano, Nainggolan, Perisic, Icardi.
Subs: Padelli, Martinez, Balde, Ranocchia, Valero, Miranda, Candreva.
Referee: Cüneyt Çakır