Former Saracens prop James Johnston will remain at Worcester Warriors, the club announced, after joining them at the beginning of this year.
The 30-year-old, who made 71 and 33 appearances for Harlequins and Saracens respectively, will remain at Sixways until next season.
He moved to Worcester after featuring in only eight matches for Wasps – all of which were from the bench – due to injuries.
Johnston has been competing with South African Nick Schonert for the number three spot in head coach Dean Ryan's side.
He has amassed 14 caps for Samoa since making his debut in 2008.
The Worcester boss has expressed his delight at the lengthening of the contract.
"We have extended JJ’s deal to stay with us into next season, which is great news," Ryan said to the Worcester News.
Johnston's contract extension comes just days after the club announced the permanent signing of livewire scrum-half Francois Hougaard.
These signings are a huge boost for a side who are struggling to find good form, they are currently in tenth position on the Premiership table, but boss Ryan however believes that the youth is needed for the development of the club.
"We shouldn’t lose sight of what this club are trying to do – it’s to develop players," Ryan said.
"We have a young front row and Darren Barry is 26. They are now in a winning side, which makes a big difference.
"We all know the class of Francois and he just makes life a bit easier but we must not lose sight of the people developing around him."