Argentina Rugby Federation chief Agustín Pichot has confirmed that Daniel Hourcade will lead the national side until the RWC.
Hourcade took over the role following the shock resignation of Santiago Phelan before the November Tests.
The current boss previously worked with the Jaguars, Argentina's 'B' team, and has risen through the ranks.
Los Pumas ended the year on a high with victory over Italy, but that win failed to mask a troubled year for the side who failed to win a single match in The Rugby Championship and lost a Test series at home to England, while also being comprehensively beaten by Wales.
Hourcade will now be given more to work with his players ahead of an important year in the build-up to the global showpiece in England in 2015.
"Daniel has come through the federal ranks as a coach and we are fully confident that he can ensure we have a very successful World Cup," Pichot told AFP.
"It is not going to be easy leading up to the World Cup, but we will depend on his experience and human qualities."