A wind deflector for a sliding roof system is disclosed herein, the wind deflector having: a wind deflector element that is adjustable between a lowered position and an extended position; and a pair of raising arms that are each connected with the wind deflector element at one end and with an abutment at the other end, wherein the abutment is vehicle-fixed, that the raising arms are configured to be telescopically length-adjustable, and that an adjustment mechanism is provided by which the distance of the wind deflector element from the abutments is reduced when it is moved from the lowered position to the extended position.