Arsenal's FA Cup fifth-round tie with Liverpool next month will be a Category B fixture, meaning ticket prices will not be in the highest price band.
However, the 9,000-strong visiting support can now expect to pay between £35.50 and £54 at Emirates Stadium.
Arsenal insist their decision has come through internal discussions only.
A club statement read: "Arsenal has announced that the forthcoming FA Cup fifth-round tie against Liverpool will be classified as a B category fixture. This match would normally be designated as an A category game.
"However, after the FA Cup draw was made on Sunday, the club considered a wide range of factors, including our cup draws to date and our forthcoming fixture schedule, and has decided to make it a B category match."
In January 2013, Liverpool supporters held up banners inside the Emirates protesting about the cost of attending the game.
Spirit of Shankly suggested that prices for the upcoming tie should match those for Coventry City fans in the previous round of the competition, who they say paid £25.50 per ticket.
They had also argued November's 17:30 GMT start led to problems using public transport and wanted an earlier kick-off.
Arsenal Supporters Trust had added their backing to the fans' group's questioning of potential ticket prices for the fixture, which will be played on a date yet to be announced between 14-17 February.