Queens Park Rangers defender Michael Harriman will remain on loan at Luton Town until the end of the season after extending his deal with the League Two side.
The 22-year-old has made 17 appearances for John Still's team since joining from QPR in October.
The move has been completed in time for Harriman to feature against Plymouth Argyle at Home Park on Saturday, and also ensures that the young right-back will be available for the playoffs, should Luton qualify.
Harriman, who has made two first-team appearances for QPR, spent last season on loan at Gillingham, and has represented Ireland at Under-21 level on four occasions.