The Derby veteran has been a stand-out performer at Hillsborough since his move north from Pride Park and he will now be at the club until the end of November - with Barnsley at home set to be his last game.
Meanwhile, Richard Wood is set to be out of action for six weeks after dislocating his shoulder in the Scunthorpe game.
The defender admits the pain was the worst he has ever experienced and joins Franny Jeffers on the sidelines.