A goal from former Cork City player Darragh Ryan - who was released by the club at the end of last season - was enough to see his new side St Patrick's Athletic pick up their first win of the season at a wet Turners Cross.
Cork's opening game of the campaign saw the kick-off delayed by ten minutes due to crowd congestion at the turnstiles as the 3,500 crowd came to see manager Paul Doolin give five league debuts to new players.
The visitors welcomed back David Partridge and Jamie Harris to the side after serving suspensions, as they hoped to bounce back from last week's 3-0 home setback to Galway at Inchicore.
Cork made one change to their starting eleven after they opened the season with a draw in Sligo, as they brought Latvian signing Guntars Silagailis into their attack with Denis Behan on the substitutes bench.
But it was Jeff Kenna's side who took a 10th minute lead after the home side conceded a soft corner-kick through captain Dan Murray.
Alan Cawley's flag kick picked out former Cork defender Darragh Ryan on the edge of the penalty area and he drilled a low shot through a packed penalty area and beyond goalkeeper Dan Connor.
Cork had more of the ball in the first half but they failed to breakdown a strong St Patrick's rear guard where centre-backs Jamie Harris and David Patridge were very strong in aerial combat.
The visitors almost stretched their lead seconds after the break. Goalkeeper Connor saved from Mark Leech on the edge of the penalty area, the ball broke to Pat's Latvian player Gints Friemanis but his shot failed to hit the target.
City tried hard to get back into the game, but the Dubliners were always dangerous on the break and a shot from Damien Lynch tested the Cork netminder after 70 minutes.
The Leesiders lack of penetration in front of goal against the well organised visitors saw the three points head to Inchicore.