Top: a sample light curve of our simulations. The system consists of an M star with a 9 day rotational period with a Jupiter-sized planet (R_p/R_∗ = 0.15) in a 3 day orbit. We considered a plage with a filling factor of 0.25% on the surface of the star. The red curve corresponds to the case when the transiting planet occults the plage. The green curve shows the best fit transit light curve without considering the occultation. Bottom: zoomed-in at the bottom of light curve.