Top panel: the synthetic light curve of the transit of CoRoT-2 computed with the parameters in Table 1 of Alonso et al. (2008) (dashed line) together with the unperturbed profile obtained from Eq. (8) (diamonds) and the corresponding best fit (solid line). The flux is measured in units of the out-of-transit flux level in all the cases. Bottom panel: the residuals of the best fit to the unperturbed transit profile in relative flux units vs. the orbital phase.