Wolves goalkeeper Jonathan Flatt will remain on loan at Conference side Wrexham until 4 January.
The 20-year-old joined on a month's loan in November as cover for the injured Andy Coughlin and Dan Bachmann.
Coughlin is close to returning while Bachmann, on loan from Stoke City, has made one appearance since returning from injury but is ineligible for the FA Cup.
Flatt will remain until after the FA Cup tie at Stoke on 4 January.
"I've really enjoyed my spell at Wrexham," Flatt said.
"The rest of the lads have welcomed me into the squad and it's been fun playing first team football.
"Dan is getting close to full fitness again, but I was more than happy to stay with the club and help during the Christmas period."