Overwriting modded entity loot table

so i created a datapack with pack.mcmeta ofcourse, and data/(mod name)/loot_tables/entities and then a json file with a loottable for the entity but it doesnt seem to work, the loot table is correct. the entity drops nothing after i "changed" its loot table so i geuss it recognises it? Did i do it correctly? if not how would i do it?