Callum McNaughton has had his youth loan spell at League Two club AFC Wimbledon extended until 4 January 2012.
The centre-back initially joined the Dons on 9 September, having made his West Ham United debut in the Carling Cup defeat by Aldershot Town the previous month.
Incidentally, the 20-year-old's AFC Wimbledon debut came in a 1-1 League Two draw against the Shots. Since then, McNaughton has gone on to make 12 league and two Johnstone's Paint Trophy appearances for Terry Burton's side.
McNaughton's next appearance could come in Saturday's home fixture against Accrington Stanley at Kingsmeadow.
The Bishop's Stortford-born player is one of eight West Ham players currently out on loan. The other seven are Herita Ilunga (Doncaster Rovers), Frank Nouble (Gillingham), Ahmed Abdulla (Swindon Town), and Rob Hall (Oxford United), and season-loan loanees Jordan Spence (Bristol City) and Pablo Barrera (Real Zaragoza).