Nigeria held Algeria to a goalless draw to qualify for the semi-final of the U-23 Africa cup of nations in Senegal on Saturday evening.
The Dream team finished runners up behind Les Fennecs courtesy of an inferior goal difference.
Mali defeated Egypt 1-0 in the other game in group B to deny the Pharoahs of an opportunity of making to the last four.
Nigeria will now face host Senegal in the semi-final while Algeria will take group A runners up South Africa.
The top three teams will secure automatic qualification to the 2016 Olympic games in Rio de Janeiro.