Ahead of the 2012–13 season, Hoffer returned to Napoli after the club did not take up a permanent move for him. Instead, he re–joined Eintracht Frankfurt on loan for another season on 6 August 2012. He scored his 10th goal in his Eintracht Frankfurt career, in a 3–2 win over 1. FC Nürnberg on 21 September 2012. However, Hoffer struggled in the first team, due to competitions, and his own injury concern. As a result, Hoffer asked the club to terminate his loan deal, which the club accepted.