Series leader Häcken with nine games in a row without a loss got it tough in the first half away against Mjällby.
The home team dominated the ball possession and was close to taking the lead a few times.
And finally came the dividend.
Five minutes before the break, Ibrahim Moro found Victor Gustafsson who with a hard shot gave Mjällby the lead with 1-0.
But right in the second half, Häcken struck.
After Mjällby's goalkeeper, Samuel Brolin, made a mistake in his own penalty area that Häcken could use.
The ball ended up with Leo Bengtsson in front of goal that set the equalizer.
And in the 82nd minute, Häcken completed the turnaround.
A nice post reached Ali Youssef in the penalty area who could nod in 2-1 to the league leader without threat.
Mjällby was on at the end to get in an equalizer but Häcken kept out and won 2-1.
Thus, Hisingslaget retains the league lead and now has ten games in a row without a loss.