The defender joined United last summer from Blackburn Rovers.
"I've really enjoyed it and I feel like I've really progressed and come on as a player. It's a massive learning curve for me. Being at United in my first season has really given me an insight into the passion and drive the club has.
"The history speaks for itself and we'll do it the United way, we'll bounce back and we'll go again next season," he told manutd.com.