Bristol City defender Joe Bryan has signed a contract extension to keep him at the club until the summer of 2015.
The 19-year-old Bristol-born academy graduate has made one start and two substitute appearances for the first team this term.
He also spent time on loan at non-league Bath City last season.
"I'm delighted he has shown the same commitment in signing the deal that we have shown in him," manager Derek McInnes told the club website.
"Joe has worked very hard and shown us enough talent to earn this contract and hopefully it gives him the stability to establish himself at first team level.
"From very early on in my time here he caught the eye, was a constant in training and from February onwards was involved in the majority of the matchday squads.
"He always wants to improve, ask questions and listens intently to your answers. He has an appetite to be the best he can be, and with the right guidance and development he can have a very promising future with Bristol City."