Drawing from social information processing theory (SIP) and attribution theory, we proposed a moderated mediation model, through which we examined how corporate social responsibility (CSR) impacts employee constructive deviance. Data were collected from two studies, a scenario experiment (N = 168) and a time-lagged survey (N = 281), which provided support for our hypotheses. Specifically, we found that CSR is positively related to employee constructive deviance, and calling mediates this relationship. CSR perception translates into greater calling and more constructive deviance when employees attribute CSR to intrinsic attribution than extrinsic attribution. Implications for research and practice are discussed.