Manchester City's official supporters' club is concerned that Manchester United's plans to commemorate the 50th anniversary of the Munich air disaster at next month's derby could be ruined.
Some City fans chanted: "We're all going to the Golden Jubilee", sung to the tune of Yellow Submarine, at a recent match, raising fears that the February 10 game between the two clubs may be spoiled.
Kevin Parker, the general secretary of City's supporters' club, hopes that United will agree to hold a minute's applause rather than 60 seconds' silence.
A letter sent to United said: "We plead with Manchester United to change from the proposed minute's silence to a minute's applause to allow all true football fans a chance to show their respects.
"In this way any idiots who do not share these views will be drowned out rather than highlighted.
"We think it is obvious that if there is a minute's silence some fool will interrupt it and this will reflect very badly not only on Manchester City but on Manchester and football supporters in general."
Parker added: "We have to accept that, while there is some friendly rivalry between the two sets of supports, there is also a great deal of hatred and there will be some City fans who do not want to go along with any recognition of the disaster."