The invention relates to a safety for a repeating rifle, with a safety slider (4) arranged displaceably between a safety position and an unsecured position on a lock (2), and a locking element associated with the safety slider (4) for blocking or releasing a firing pin nut (8) displaceably arranged in the lock (2). The locking element according to the invention is constructed as a safety lever (22), rotatable about a transverse pin (24), with a control part (23) engaging with a control groove (19) on the firing pin nut (8).