With the start of the 2006–07 season, Wolf was back in the starting line-up alongside fellow centre-back Gláuber. He started the season well and helped the club go undefeated in the first nine matches of the season before losing 2–1 against Hertha BC on 4 November 2006, in which he was suspended after picking five yellow cards this season. Wolf's performance continued to impress, resulting him to sign a contract extension keeping him until 2011. He then scored his first goal of the season on 28 April 2007, in a 1–1 draw against Wolfsburg. Although he missed out again due to a back injury he finished the 2006–07 season making 35 appearances in all competitions.