The 31-year-old's previous deal was due to expire in 2015, but he has now committed his future to the Ligue 1 side until 2017.
"I am very happy to be part of this team and that is why I was happy to sign my new offer," he told the club's official website.
"I want to help the team reach the top now and for years to come. I adore this team and this club also I am in love with the fans of this club."
The Nigerian international had previously been linked with a move to Arsenal.