Roma have announced that Federico Fazio has extended his contract at the Stadio Olimpico until 2020.
The 30-year-old joined the Serie A club last summer on a season-long loan from Tottenham Hotspur before the deal was made permanent in July this year.
"This was an easy decision for me to make," Fazio, an Argentina international, told the official Roma site.
"Ever since I arrived here I've got on really well with all my team-mates, the staff and everyone who works here at Roma.
"I love the city and I'm really happy here. It's great news that I'm going to be here until 2020."
Fazio has made 59 appearances for the Giallorossi in all competitions, scoring four goals.