The defender is on loan from Wimbledon and has impressed sufficiently in his four outings to convince coach Bill Dearden to extend his stay.
Jupp will now remain with The Magpies until January 11, with his loan due to expire after the home match with Stockport.
The 27-year-old had failed to feature for Wimbledon and is keen to leave the Londoners.
Meanwhile, Jon Ashton has returned to Leicester City and has undergone a hernia operation.
