Transit light-curve disappears because of occultation of the grazing transiting planet with polar spots. The transit light-curves are generated with the SOAP-T tool. The lines show that the grazing planet transit light-curves correspond to different impact parameters (b = 0.90,0.95,1.00,1.05) over a star without any spot. The line markers indicate the grazing planets that occult polar spots (centered on the stellar pole) with different filling factors (f). All the spots have a temperature contrast with respect to the stellar temperature of ΔT = 2500 K. The line markers are offset vertically for clarity.