diff --git a/components_digs.lua b/components_digs.lua
index e323bb8..5346b6d 100644
--- a/components_digs.lua
+++ b/components_digs.lua
@@ -33,14 +33,11 @@ end
 -- Dig 'components:bioresin' in 'default:jungletree'
 modComponents.addDrops("default:jungletree", 1, 'default:jungletree') -- rarity:1 = 1/1 = 100%
 modComponents.addDrops("components:bioresin", 5, 'default:jungletree') -- rarity:5 = 1/5 = 20%
-if type(unified_inventory)=="table" and type(unified_inventory.add_category_items)=="function" then
-	unified_inventory.add_category_items('plants', {"components:bioresin"})
-end
---########################################################################################################################
 -- Dig 'components:quartzo_crystal_pink' in 'default:gravel'
 modComponents.addDrops("components:quartzo_crystal_pink", 20, 'default:gravel') -- rarity:20 = 1/20 = 05%
-if type(unified_inventory)=="table" and type(unified_inventory.add_category_items)=="function" then
+
+if minetest.global_exists(unified_inventory.add_category_items) then
+	unified_inventory.add_category_items('plants', {"components:bioresin"})
 	unified_inventory.add_category_items('minerals', {"components:quartzo_crystal_pink"})
 end
 --########################################################################################################################
-