Kinnear and Holdsworth appear to have patched up their early-season differences, with the England B striker returning to the Dons starting line-up.
"We had a clash of opinions and mine was always going to win," Kinnear said. "You can only have one man running the club and that is me. The club always comes first. But all that is in the past and I want to keep him."
The reconciliation has coincided with renewed speculation that Everton, who made a bid for Holdsworth two years ago, have renewed their interest.
The Leicester striker Mark Robins, whose Premiership chances have been limited so far, has put in a surprise transfer request. Robins joined Leicester from Norwich for pounds 1m 20 months ago.
The Birmingham owner, David Sullivan, has given the Football Association his backing should they choose to ban the club's fans from away games following violent scenes at the end of Saturday's First Division game at Manchester City.
"If they are not careful, we won't have a club in Birmingham and the ground will be shut down," Sullivan said.Reuse content