There have been rumours he would walk away on a free next summer as he is unhappy at not playing regularly because of Rafa Benitez's infamous rotation system.
A long-term deal could cost Liverpool £17m, with the money going to the Media Sports Investment group, who own Mascherano's rights.
And the tough-tackling star, known as the Little Chief, has shot down all the gossip and admitted he wants to stay - for years.
Mascherano said: "I'm very happy here. I feel settled and would like to play at the new stadium.
"I love playing for Liverpool and if the manager wants to keep me then I'd definitely stay for a long time."