Folk was officially added to the Patriots' 53-man roster Tuesday, Zack Cox of NESN.com reports.
He was promoted from the practice squad for the team's opener and although Folk missed his lone field-goal attempt, a 45-yarder, in Week 1's win over the Dolphins, the team is satisfied with the veteran kicker and will retain him on the active roster. Rookie fifth-rounder Justin Rohrwasser is still on the practice squad in case Folk slips up, but moving forward, Folk will be the Patriots' kicker.