Nigeria's Golden Eaglets suffered a 2-1 defeat to Australia - their first loss in three matches at the FIFA U17 World Cup in Brazil.
It is the first win for Australia against Nigeria at their seventh attempt in the U-17 world finals.
Noah Botic opened the scoring after 14 minutes to put Australia ahead but Peter Olawale's strike seven minutes later brought the game on equal terms at half time.
Nine minutes after the restart, Botic converted from a penalty and Nigeria was unable to find their way back as they suffered their first defeat.
Nigeria has already qualified for the Round of 16 after recording victories in their first two matches.