Gambians Real de Banjul defeated Liberians Barrack Young Controllers 1-0 at the weekend to earn a 2-1 aggregate win and reach the Champions League last-32.
Yankuba Jarju scored the winner on 30 minutes in Gambian capital Banjul after crisp, short passing between Ebou Sanyang and Famara Jarju.
Banjul advanced following a 1-1 draw at the same stadium three weeks ago in the first leg of the preliminary tie.
Controllers could not host the second leg because of fears over Ebola.
Banjul will face title-holders Algerians Entente Setif (pictured) in the next round.