The goal, with Moses Simon providing the assist, will catapult Nigeria into the second round of the tournament if the Guineans were unable to equalize.
Nigeria is heading the group after beating Burundi in the first match.
The Eagles, playing without captain Mikel Obi also dominated possession in the second match at Alexandria Stadium.
Nigeria will play Madagascar in the last Group B match at the Alexandria Stadium on Sunday.
Watch the video below;
Here is the Goal that took Nigeria into the Round of 16.
Big one for @omeruo22
— Football Now NG (@FootballNowNG) June 26, 2019