The Drughi ultras group believes that the Rossoneri are waiting for the Bianconeri fans to make offensive chants so that they can report them to the authorities.
"Tomorrow night against Milan we must avoid offensive or racist chants," reads a statement on their official website. "Let's not play their game. The 'moaners' at Milan are waiting for us to slip up.
"All it will take is one offensive or racist chant, or a couple of monkey noises, to get the stadium banned and steal our Scudetto party away from us.
"This is why we are asking everyone to take responsibility. We must cheer on our club colours and not give them anything to criticise us for."
Inter Milan ultra groups made a similar appeal to the Nerazzurri fans before their derby game against AC Milan this season.