The relationship between perfectionism and stress is well-established. Recent research has focused on identifying the mediators of this link. Starting from a multidimensional perspective on perfectionism, we investigated the role of self-control and found it to be a mediator between perfectionism and stress in a sample of university freshmen. Further, perfectionistic concerns (i.e., discrepancy; Slaney et al. 2001) were positively correlated with stress, whereas perfectionistic strivings (i.e., high standards; Slaney et al. 2001) were negatively correlated with stress. Practical implications regarding overcoming maladaptive perfectionism are discussed.