Following a shinbone injury at the start of 2015 Dirar made his first team return on 17 January 2015, coming on as a substitute in the second half in a 1–0 win over Nantes. He then captained Monaco for the first time following absence of the team captain Jérémy Toulalan in the Champions League knockout stage in the first leg, a 3–1 win over Arsenal. One month later, on 22 March, he scored his second goal of the season in a 3–1 win over Stade de Reims. As the 2014–15 season progressed, Dirar suffered an injury and was sent-off in a 4–1 win over Toulouse on 3 May 2015. He finished the 2014–15 season with 2 goals from 41 appearances in all competitions.