Carl Froch will take on WBC super-middleweight champion Lucian Bute at the Nottingham Arena on 26 May.
Promoter Eddie Hearn had hoped to stage the fight outdoors at Notts County's Meadow Lane football ground but logistical issues and bureaucracy have made the idea unrealistic.
Hearn said: "We looked at Meadow Lane and had meetings with the local council and the police but the problem was Meadow Lane didn't have a licence for boxing.
"We were given decent guarantees from the council that that should not be a problem providing we adhered to certain rules, but it takes 28 days and with the uncertainty over that, I can't put tickets on sale on Monday at a venue where I actually don't know whether the fight will happen or not.
"Also, with the uncertainty over capacity numbers in terms of exit routes from the ground, we couldn't officially say what the capacity would be or get seating plans ready in time.
"So the fight is at the arena, which holds 9,000 people. I know it will sell out in a couple of weeks but that's how it is."