The 24-year old arrived at the County Ground in November but after being restricted to three appearances has had his time there extended until February 2.
"I am very happy to have Chris here for more time," Town boss Paolo Di Canio told the club's official website on Monday.
"The new agreement means he is here for another five games but we will be working within that month to try and keep him here for longer.
"He has done well for us so far. We know he can score goals because he scored seven goals in the Championship last season and he has made chances here. I believe as soon as he scores his first then more will follow - it is like a little psychological barrier but we will work with him.
"He has played a big part since he came here and we are pleased to have him here for longer."