The goal was scored by Jean Charles Ahoua, at 27, from a penalty, before Emmanuel missed a penalty for the Angolan side.
In the same competition, Desportivo da Lunda Sul lost to RSB Berkane, from Morocco, in the latter's stronghold, in Group B, by 2-0.
At 21, Abdelhac Assal, opened the scoring, while Yassine Labhiri, at 74, sentenced the result.
On Tuesday, in the African Champions Clubs League, Sagrada Esperança was beaten 5-1 at Pyramids, in their opening game in Group D.
