Abstract: The present invention is directed to a lawn mower attachment for controlling lateral discharge of clippings expelled from a discharge chute of a mover. The attachment includes a flap pivotally connected to an exterior surface of a lawn mower proximate a discharge chute thereof. A support strut and a control bracket spaced therefore are connected to the exterior surface of the lawn mower. A shaft extends between the control bracket and the support strut. A linkage having a first end pivotally coupled to the shaft proximate the support strut and a second end pivotally coupled to the flap is provided. A distal edge of the flap is pivoted away from the discharge chute upon rotational movement about a longitudinal axis of the shaft in a first direction, and pivoted toward the discharge chute upon rotational movement in an opposite second direction.