diff --git a/mods/ENTITIES/mobs/api.lua b/mods/ENTITIES/mobs/api.lua
index 367b49980..a9c290e7b 100644
--- a/mods/ENTITIES/mobs/api.lua
+++ b/mods/ENTITIES/mobs/api.lua
@@ -2842,8 +2842,6 @@ function mobs:register_egg(mob, desc, background, addegg, no_creative)
 		inventory_image = invimg,
 		groups = grp,
 
-		_mobs_spawns_mob = mob,
-
 		on_place = function(itemstack, placer, pointed_thing)
 
 			-- Call on_rightclick if the pointed node defines it