The out-of-favour Leicester City forward had been set to leave the Terriers on December 29 but is now tied down for the full campaign, aiming to add to his three goals
The striker joined the Terriers on a 93-day emergency loan in September and has scored three goals in eight appearances since, though he will not be able to add to that tally when the two teams face each other on January 1.
"I think people have seen what he can bring to this football club," manager Simon Grayson told Huddersfield's official website.
|THERE WILL BE HUDD|
|10/1||Jermaine Beckford is 10/1 with Bet365 to score first in a Huddersfield win over Blackpool|
Since winning the League One playoffs in 2011-12, Huddersfield have propelled themselves to 15th in the Championship table at Christmas.
Beckford's three goals make him the club's joint-second-top scorer, with Adam Clayton, Lee Novak and Norwich City loanee James Vaughan all tied on four apiece.