Manchester City-bound forward Gabriel Jesus scored one and set up another as Brazil made it six wins in a row with a 2-0 victory over Peru.
Not since qualifying for the 1970 World Cup have Brazil won six South American qualifiers in a row, but Ttie's side put in another impressive display in Lima to keep a fourth clean sheet in as many games.
Having thrashed rivals Argentina 3-0 last week the Samba Boys might have expected to make light work of Peru, but they were frustrated for the opening 45 minutes.
Jesus, who has agreed a move to the Etihad Stadium in January, finally broke the deadlock in the second half and then set up Renato Augusto late on.
The five-time World Cup winners are now four points clear in the South American group, while defeat leaves Peru eighth and unlikely to reach Russia 2018.
Fernandinho headed the best chance of the first half over the bar, but Brazil went ahead 13 minutes after the restart when Jesus finished well after Peru failed to clear the danger.
Christian Ramos headed wide when presented with the chance of an equaliser while at the other end Neymar struck the crossbar.
However, the visitors made the points safe 11 minutes from time when 19-year-old Jesus set up Renato Augusto, who dispatched a low effort into the net.