A light module (4) for an elongated interior aircraft light (2) includes: a plurality of light sources (6), forming an array of light sources (6) that extends between a first lateral end portion (40) of the light module (4) and a second lateral end portion of the light module (4); and an elongated light transmissive cover (8) that is arranged over the array of light sources (6), wherein the elongated light transmissive cover (8) allows a forward light output portion (30), emitted by the plurality of light sources (6) towards the elongated light transmissive cover (8), to pass through; wherein, at at least one of the first lateral end portion (40) and the second lateral end portion, a light output boosting lateral end cap (10) is provided, wherein the light output boosting lateral end cap (10) is shaped to mesh with a neighboring lateral end cap (10') of a neighboring light module and wherein the light output boosting lateral end cap (10) has a light re-directing element (12), wherein the light re-directing element (12) is configured to re-direct at least some light of a lateral light output portion (32), emitted by the plurality of light sources (6) and incident on the light output boosting lateral end cap (10), to form an ancillary forward light output portion (34), which passes along a side face (16) of the light output boosting lateral end cap (10).