Faughanvale lead Cavan's Templeport by three points on a scoreline of 1-03 to 0-03 at half-time in their Ulster Junior Football Championship semi-final taking place at Brewster Park in Enniskillen.
Kevin Martin got the goal for the Derry champions in the seventh minute.
Martin, Marty McGuinness and Joe Gray with the points for the Derry champions.
Martin Sweeney replaced Stephen King in the 15th minute after the Vale captain was shown a black card.