The Newcastle winger has scored two goals in 29 appearances for the Bantams this season, and boss Stuart McCall is delighted the 21-year-old has prolonged his spell at Valley Parade.
“He has kept improving as the season has gone on,” McCall told Bradford’s official website.
“We said back in the summer when we were trying to entice him back to the club that he would be given a good chance in the team, and he has certainly taken it.
“He has got stronger and stronger, and he is becoming an important part of our team.”
Paul Huntington says Preston's play-off hopes this season hinge on them getting the balance right on and off the pitch.