The 21-year-old Irish international tapped in from a cross to score Blues’ solitary goal in a 2-1 defeat against the third tier French side on Thursday.
The striker is available on a free transfer after his release from West Ham, where he failed to make a single first team appearance after signing from Waterford in January 2013.
Originally dubbed the Irish Messi by his former chairman at Waterford, the Republic of Ireland under-21 international played 34 times for Accrington Stanley last season, scoring eight times while on loan from West Ham.