Joel Ward sunk struggling Coventry with a winner which helped Portsmouth forget their off-field problems.
The south coast club's owners, Convers Sport Initiatives, went into administration last week.
But Ward hit a 59th minute winner after Lukas Jutkiewicz had equalised for Coventry.
Greg Halford had broken the deadlock for the hosts from the penalty spot following a calamitous piece of defending from the visitors.
More to follow