<p>The invention relates to a motor-actuated lock for a motor vehicle, comprising a bolt (9) which can pivot between a locked position and an unlocked position and a pawl (11) which can pivot between a first bolt-retaining position and a second bolt-release position. The lock comprises a slide (15) including a guiding cam (33) and the pawl (11) bears an opening slug (13) that co-operates with the guiding cam (33) such as to force the release of the bolt (9) by the pawl (11) during the unlocking movement.</p>