@@ -34,10 +34,10 @@
 			identity,count = is:get_name(), is:get_count()
 		end
 	end
 
-	local stack = ItemStack(item)
 	if sorcery.lib.str.beginswith(identity, 'group:') then
+		local stack = ItemStack(item)
 		local groups = sorcery.lib.str.explode(string.sub(identity,7), ',')
 		for _,g in pairs(groups) do
 			local rn,rv = sorcery.lib.tbl.split(g,'=')
 			local gv = minetest.get_item_group(stack:get_name(), rn)