diff --git a/api/libri.lua b/api/libri.lua
index d9d08b4..8e329bf 100644
--- a/api/libri.lua
+++ b/api/libri.lua
@@ -446,6 +446,7 @@ iterate_libri_images()
 minetest.register_craftitem("animalia:libri_animalia", {
 	description = "Libri Animalia",
 	inventory_image = "animalia_libri_animalia.png",
+	groups = {book = 1},
 	stack_max = 1,
 	on_place = function(itemstack, player)
 		local meta = itemstack:get_meta()
@@ -519,4 +520,4 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 			libri_players[plyr_name] = nil
 		end
 	end
-end)
\ No newline at end of file
+end)