Chesterfield youngster Jamie Lowry has agreed a deal to stay with the League Two club until 2010.
Lowry has come through the ranks at Saltergate and he made his first-team debut last season.
He has been a regular fixture in Lee Richardson's side this term and has missed just three games in the league.
The defender has also chipped in with four goals and Lowry is 'delighted' to have signed a contract extension.
"I am really enjoying my football at the moment and am delighted to be able to extend my contract with Chesterfield," Lowry told the club's official website.
"I am really pleased that I have been able to make some impact this season and hope I can continue to perform well and we can push out of this division."