Mansfield Town have been boosted after an inspection from safety officials allowed them to raise the capacity of Field Mill from 4,684 to 6,553.
The Stags attracted 6,646 fans in a League Cup tie last season
The ground's capacity had previously been halved from 9,368 to 4,684 in May by Nottinghamshire County Council.
The Stags staged a friendly against Derby on Saturday, which they won 2-0.
"I am pleased the safety people accept there were no problems and are pleased with our new regime," chairman James Derry told the club's website.
"But I am disappointed that we are not yet up to the full capacity."
Mansfield's average home crowd last season was 3,176 - the highest gate being 6,646 in a League Cup tie against Portsmouth.