diff --git a/lib/tror.lua b/lib/tror.lua
index 2bb0a4b..260f9cc 100644
--- a/lib/tror.lua
+++ b/lib/tror.lua
@@ -134,12 +134,14 @@ tror.trocar_plus = function(player, item_rem, item_add)
 	
 	-- Transfere todos os itens ao jogador (e dropa os que nao couberem no inventario)
 	local dropou = false
-	for _,item in ipairs(item_add) do
-		if inv:room_for_item("main", item) then
-			inv:add_item("main", item)
-		else
-			dropou = true
-			minetest.env:add_item({x = pos.x + math.random() * 2 - 1, y = pos.y+1, z = pos.z + math.random() * 2 - 1}, item)
+	if item_add ~= nil then
+		for _,item in ipairs(item_add) do
+			if inv:room_for_item("main", item) then
+				inv:add_item("main", item)
+			else
+				dropou = true
+				minetest.env:add_item({x = pos.x + math.random() * 2 - 1, y = pos.y+1, z = pos.z + math.random() * 2 - 1}, item)
+			end
 		end
 	end