How do group members respond when their group wrongfully punishes a group member? In two experiments, participants were presented with an ingroup member who argued for group change on moral (Experiment 1, N = 73) or scientific grounds (Experiment 2, N = 94). Despite being right, the member was treated as deviant by the group. We manipulated whether the group retained its former opinion or adopted the deviant's position, and whether the deviant's punishment was ongoing or whether the deviant was reinstated. We tested opposing predictions about how these group actions would affect group members' negativity towards the deviant. Both studies showed that negativity towards the deviant was highest when the group opinion was unchanged and the deviant was not reinstated. Further, opinion change or reintegration defused negativity towards the deviant. Implications of groups rejecting or embracing change, and their effects on the evaluation of wrongfully accused deviants are discussed. Copyright © 2010 John Wiley & Sons, Ltd.