This study investigates antecedents of individuals' commitment to the legal-claiming process. Individuals were surveyed as they entered a district office of the federal Equal Employment Opportunity Commission to file an employment discrimination claim. Respondents' attributions regarding who they blamed for their grievance, the social guidance received, their organizational tenure, and their commitment to legal claiming were assessed. Results showed that individuals who made strong external attributions had a higher commitment to legal claiming than did those who made weak external attributions. Social guidance and organizational tenure were significant moderators of the attribution-claiming relationship. Specifically, commitment to legal claiming was more strongly related to external attributions when social guidance was low and organizational tenure was high. Theoretical and practical implications are discussed.