Montoya again spent the vast majority of 2011–12 with the reserves. His first start for the first team occurred on 12 January 2012, in a 2–1 away triumph against CA Osasuna for the Copa del Rey (6–1 on aggregate). Due to injury to Dani Alves he played in the final of the domestic cup, featuring the full 90 minutes in a 3–0 win over Athletic Bilbao; he had previously scored his first official goal on 6 December 2011, helping the hosts defeat FC BATE Borisov 4–0 in the group stage of the UEFA Champions League.