He made his debut for the club, starting the whole game and kept a clean sheet, in a 0–0 draw against Örebro in a league game. This was followed up by keeping another clean sheet against Helsingborgs, winning 2–0. Since joining BK Häcken, Lindgren quickly established himself in the first team, playing in the centre–back position. However during a 3–2 win against Hammarby on 22 September 2016, he suffered a concussion after colliding with opposition player Pa Dibba in the 63rd minute that saw substituted. After the match, it was announced that Lindgren would be out for several weeks. He didn’t make his return to the first team until on 16 October 2016 against Jönköpings Södra IF, starting the whole game, in a 1–1 draw. At the end of the 2016 season, Lindgren went on to make fourteen appearances in all competitions.