The L134A1 Desert Jackal is named Jackal2 L2A1 Desert, which is the name of the HMG version of the vehicle.

On a related note, the HMG Jackals, Coyotes are the only ones that use the L number designation, all the other UK vehicles use either HMG/GMG or M2 in their name, so while a small issue is something of an inconsistency.