Nigeria beat Sudan 5-0 on Tuesday in the return leg of the AFCON U23 qualifier played at the Stephen Keshi Stadium.
A brace from Effiong Ndifreke and one each from Taiwo Awoniyi, Sunday Faleye and Ibrahim Sunusi sealed Nigeria's place at the forthcoming tournament.
Taiwo Awoniyi puts Nigeria ahead when he heads in from a rebound after just eight minutes of kickoff.
Effiong Ndifreke scored Nigeria's second goal through a beautiful header in the 28th minute and the Akwa United forward added another one to put Nigeria 3-0 ahead into half time.
After the break, coach Imama Amapakabo brought in Sunday Faleye for Muyiwa Olabiran in the 63rd minute. And three minutes after coming in, Faleye scored to increase the Nigeria's lead.
Just as fans at the Stephen Keshi Stadium in Asaba are celebrating, Nigeria increased the tally when Ibrahim Sunusi made it five goals.
With 20 minutes remaining on the clock, Kelechi Nwakali, who was shown a yellow card in the 65th minute, was substituted for Fatai Gbadamosi.
Three minutes was added after regulation time, but the result did not change.
The result means Nigeria qualify for the AFCON U23 tournament to be hosted by Egypt on a 5-1 aggregate after a 1-0 loss in the first leg in Omdurman.