Super Eagles coach Sunday Oliseh has rued the dropped points against Tunisia at the African nations championship but promises the team will pick a quarter-final ticket.
Nigeria played a 1-1 draw with Tunisia on Friday.
Chisome Chikatara scored his fourth goal to give Nigeria the lead, but Tunisia drew level through Ahmed Akaichi after 70 minutes.
Oliseh assured there will be improvement in the final group match against the Syli Stars of Guinea on Tuesday in Ribavu.
The Super Eagles remain top of Group C on four points following the 2-2 between Niger Republic and Guinea.