Light curve of CoRoT 223992193 obtained by CoRoT in 2008. The original light curve is shown in black in the top panel. The cyan line and light cyan shaded area show the mean and 95% confidence interval of the predictive distribution of the Gaussian Process used to model the out-of-eclipse variations. The bottom panel shows the light curve after subtracting the mean of the predictive distribution and re-normalising to unity. The detrended light curve, which was used to model the eclipses, has a typical photometric precision of ~ 0.26% per 512 s exposure.