The new deal will keep the 22-year-old at the Reebok Stadium until the summer of 2015.
“Mark was already under contract but what this shows is that we are trying to build a football club for years to come,” Bolton boss Owen Coyle told the club’s official website.
“The nucleus is centred around young, exciting players and Mark certainly comes into that category.
“He is enjoying an extended run in the team at the moment and he is showing his qualities. To have a player of his ilk commit his long-term future to the football club is a tremendous boost.”
