1 files changed, 1 insertions, 1 deletions
diff --git a/shop.lua b/shop.lua
index 23ca0aa..c3c22b2 100644
--- a/shop.lua
+++ b/shop.lua
@@ -38,7 +38,7 @@ function stock_amt()
 	local out = 0
 	for i=1,16 do
 		local x = turtle.getItemDetail(i)
-		if x.name == ITEM then out = out + x.count end
+		if x and x.name == ITEM then out = out + x.count end
 	end
 	return out
 end