Bruno Miguel, in the 55th minute, converted a goal into a penalty that ensured the victory of the 'Huilana' team.
The 1st of August, four-time champion, leads Girabola 2020/21, with 39 points, one more than Sagrada Esperança, runner-up.
Das Faa, from Interclube, Mabululu, from 1º de Agosto, and Tiago Azulão and Picas, both from Petro de Luanda, are the best scorers of the competition, all with seven goals.
The 18th round of the championship is played on Saturday and Sunday.