At the start of the 2004–05 season, Makoun continued to regain his first team place, playing in the midfield position. Makoun started the season well when he helped Lille win the UEFA Intertoto Cup after beating U.D. Leiria 2–0 on aggregate. It wasn't until on 21 December 2004 when Makoun scored his first goal of the season against Strasbourg Alsace in the third round of the Coupe de la Ligue, as Lille lost 4–2 in penalty shootout following a 1–1 draw. However, during a 0–0 draw against Sochaux on 5 February 2005, he suffered a knee injury in the 6th minutes, resulting in his substitution and was sidelined for a month. It wasn't until on 20 March 2005 when Makoun returned to the starting line–up against Saint-Étienne, as he helped the side drew 0–0. At the end of the 2004–05 season, Makoun went on to make forty–seven appearances and scoring once in all competitions. Reflecting to the 2004–05 season, he said: "I had a great season. If I drew the attention of France-Foot journalists, it is because I have been very consistent. My club, Lille, was aligned on several fronts. We started our season with the Inter-toto cup. After this stage, we were eliminated at the quarter-final stage of the Uefa Cup by Auxerre. In the league, we finished in second place, a position that directly qualifies us for the next Champions League. Unfortunately, for the two trophies competing in France, our journey was not very brilliant".