The Brave Warriors came from one-nil down to beat the Scorpions 2-1 in a game played in Sam Najumo National Stadium in Windhoek to advance to the second round against Guinea Conakry in November 2015.
The Scorpions were held to a 1-all draw by Namibia in the first leg tie played in Banjul at the weekend.
The Gambia opened the scores through striker Pa Amat Dibba in the 10th minute of the game to keep the Scorpion’s hopes of progressing to the second round against Guinea Conakry next month alive.
But Namibia responded back quickly for an equalizer and they levelled the scores through midfielder Willy Stephanus three minutes before half time to make it 1-all.
The Gambia’s hopes of qualifying to the second round was dashed in the 63rd minute of the game when substitute Hendrik Somaeb netted the second goal to send the brave warriors to the second round of the global biggest football gala qualifiers and The Gambia out.
The Gambia will now switch their attention to their 2017 African Cup of Nations qualifiers away to Mauritania in March 2016.
Namibia will now face Guinea Conakry in the second round on 17 November 2015.