A device for binding a boot to a sports article allowing the heel of the boot to be raised with respect to the sports article, of the type in which the boot has a first connecting zone positioned at the front of the boot, and a second connecting zone positioned rearward of the first connecting zone. The device includes an attachment arm having a fixed length, the attachment arm being articulated to the base of the device at a first of two fixed points of the attachment arm and adapted to be joined to the second connecting zone of the boot at a second of the two fixed points of the attachment arm. A guiding mechanism slidably guides the first boot connecting zone relative to the base of the device.