Maladaptive perfectionism is associated with both rumination and depressive symptoms (Frost, Marten, Lahart, & Rosenblate, 1990). In the current study we tested whether rumination, as well as the rumination components of reflective pondering and brooding, mediates the relationship between maladaptive perfectionism and depressive symptoms. College students (N = 96) completed the Multidimensional Perfectionism Scale-Frost (Frost et al., 1990) and retrospectively reported levels of rumination on the Response Styles Questionnaire (Nolen-Hoeksema, 1991) and depressive symptoms on the Beck Depression Inventory 11 (Beck, Steer, & Brown, 1996) following a disappointing exam. Consistent with our model, rumination mediated the relationship between maladaptive perfectionism and depressive symptoms. Brooding, a component of rumination, also mediated this relationship whereas reflective pondering was a partial mediator. Results support a model whereby students who score high on maladaptive perfectionism report higher depressive symptoms through a mechanism of rumination. (C) 2007 Elsevier Ltd. All rights reserved.