Arsenal boss Mikel Arteta says "we can raise our voices" in disapproval after Tottenham's Europa League game before the north London derby was switched to be the home leg.
Both sides were drawn away for the first legs of their Europa League last-16 ties - but two clubs from the same city cannot play on the same day under Uefa rules.
Tottenham will now host Dinamo Zagreb, while Arsenal still travel to play Greek side Olympiakos three days before facing Spurs on 14 March.
"We want to have two teams playing in equal conditions," Arteta said on Wednesday.