Binned and phase-folded curve of the transit of CoRoT-11b, with the best-fit model over-plotted and the residuals of the fit. The standard deviation of the points outside transit is of 230 ppm (with a phase sampling of 5 × 10^-4, corresponding to about 129 s). The mean error bar of the bins is of 239 ppm, revealing an insignificant amount of red noise in the phase-folded light curve after the corrections described in the text have been performed.