Abstract: This invention relates to a switch lock for switch tongues (2, 3) having at least one locking piece (6, 7) for attaching to a stock rail (4, 5), having at least one switch tongue attachment (8, 9) for attaching to a switch tongue (2, 3) and having a slide rod (10), wherein the adjustment distance of the slide rod (10) is greater than the switch tongue impact (Z) of the switch tongues (2, 3), and in its end position, the switch tongue (2, 3) is locked on the stock rail (4, 5), wherein at least one bearing roller (17, 18) is provided on the locking piece, and wherein the slide rod (10) can be moved relative to the locking piece (6, 7) by means of the bearing rollers (17, 18) to adjust the switch tongue (2, 3).