The Lilywhites trail 1-0 going into the match in Tallaght stadium.
The game can't be hosted at Oriel Park as it does not meet the standard for this stage of the competition.
Kick- is at 8pm.
Meanwhile, Limerick sealed their place in the EA Sports cup final with a 1-0 win over Derry in the Brandywell last night.
Stephen Kenny with the only goal as the first division leaders claimed a huge scalp.
They'll play Shamrock Rovers or St Pats in the final.
In the SSE Airtricity league Premier Division St Pats overcame Wexford Youths 1-0 at Ferrycarraig Park.
Ian Bermingham got the goal after 26 minutes.
Damien Duff will join the Shamrock Rovers coaching staff for the rest of the season.
The 37-year-old joins the first team as a coach and will assist interim manager Stephen Bradley.
Duff made nine appearances for the club last year before retiring as a player.
