In the following season, Marmion continued to be first choice at scrum-half. O'Donohoe made his first start in over a year on 4 October 2013, in a 2013–14 Pro12 match against Benetton Treviso. He also came off the bench in four of Connacht's six 2013–14 Heineken Cup matches. O'Donohoe earned his 50th cap for Connacht at senior level on 4 January 2014, in a Pro12 match against his former side Leinster.