The San Siro side has been punished for their supporters' chants aimed at the injured Inter captain during Sunday's game against Catania
The Argentine defender sustained a serious Achilles tendon injury in the Nerazzurri's loss against Palermo on Sunday and faces a lengthy spell on the sidelines.
Milan supporters showed little sympathy for the Inter icon, though, chanting 'Javier Zanetti jump with us' during the club's match against Catania later that day, resulting in a fine from the league's governing body, Lega Serie A.
"Milan are fined 8,000 euros as their supporters launched abusive chants directed at a player of another club and insulted police forces during the match," an official statement reads.
Inter initially feared that Zanetti could be forced to retire due to the injury, but the 39-year-old has insisted that he would not hang up his boots.