Tommy Lonergan's second-half goal earned Waterford a vital three points, lifting the Blues clear of the Premier Division's bottom spot.
Tommy Lonergan scored the only goal as Waterford boosted their SSE Airtricity Premier Division survival hopes with a 1-0 win over Shelbourne at the RSC.
The striker headed home early in the second half from a Pádraig Amond cross to secure all three points for Graham Coughlan's side.
Lonergan had the chance to add a second from the penalty spot later in the game, but his effort struck the crossbar.
Shelbourne pushed for an equaliser in the closing stages, but Waterford held firm to record a victory that moves them three points clear of bottom-placed Sligo Rovers.
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