In mental health ethics, it is generally assumed that coercive measures are sometimes justified when persons with mental illness endanger themselves or others. Coercive measures are regarded as ethically justified only when certain criteria are fulfilled: for example, the intervention must be proportional in relation to the potential harm. In this paper, we demonstrate shortcomings of this established ethical framework in cases where people with mental illness experience structural racism. By drawing on a case example from mental healthcare, we first (...) demonstrate that biases in assessing whether the coercive intervention is proportional are likely, for example, due to an overestimation of dangerousness. We then show that even if proportionality is assessed correctly, and the specific coercive intervention would thus be regarded as ethically justified according to the standard framework, coercion may still be ethically problematic. This is because the standard framework does not consider how situations in which coercive measures are applied arise. If structural racism causally contributes to such situations, the use of coercion can compound the prior injustice of racist discrimination. We conclude that the ethical analysis of coercion in mental healthcare should consider the possibility of discriminatory biases and practices and systematically take the influence of structural discrimination into account. (shrink)