Membership in social groups may restore people's sense of global control when personal control is questioned. Therefore, ethnocentric tendencies might be increased as a consequence of personal control threat. Testing hypotheses derived from a novel model of group-based control in five experiments, we show that making lack of personal control salient increased ingroup bias and pro-organizational behavior (Studies 15). These effects were independent of parallel effects of uncertainty (Study 2) and most pronounced for highly identified group members (Study 3). Studies 4 and 5 lend support to the assumption that perceiving the ingroup as a unitary actor is critical for symbolic control restoration: threat to collective homogeneity and agency catalyzed the effect personal control threat had on ingroup support and defense. These findings complement previous research on motivated intergroup behavior and socio-cognitive strategies to cope with deficits in personal control.