diff --git a/mods/ITEMS/REDSTONE/mcl_droppers/init.lua b/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
index 13a5b879d..ac5d8d769 100644
--- a/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
+++ b/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
@@ -165,6 +165,8 @@ local dropperdef = {
 
 			-- Check if the drop item has a custom handler
 			local itemdef = minetest.registered_craftitems[dropitem:get_name()]
+			if not itemdef then return end
+
 			if itemdef._mcl_dropper_on_drop then
 				item_dropped = itemdef._mcl_dropper_on_drop(dropitem, droppos)
 			end