diff --git a/brmbar3/schema/0010-shop-sell-for-cash.sql b/brmbar3/schema/0010-shop-sell-for-cash.sql
index 12e0b9d..86fcf9c 100644
--- a/brmbar3/schema/0010-shop-sell-for-cash.sql
+++ b/brmbar3/schema/0010-shop-sell-for-cash.sql
@@ -63,10 +63,17 @@ DECLARE
 	v_cost NUMERIC;
 	v_profit NUMERIC;
 	v_transaction_id public.transactions.id%TYPE;
+	v_item_currency_id public.accounts.currency%TYPE;
 BEGIN
+	-- Get item's currency
+	SELECT currency
+	  INTO v_item_currency_id
+	  FROM public.accounts
+	  WHERE id=i_item_id;
+	
 	-- Get the buy and sell rates from the stored functions
-	v_buy_rate := public.find_buy_rate(i_item_id, i_target_currency_id);
-	v_sell_rate := public.find_sell_rate(i_item_id, i_target_currency_id);
+	v_buy_rate := public.find_buy_rate(v_item_currency_id, i_target_currency_id);
+	v_sell_rate := public.find_sell_rate(v_item_currency_id, i_target_currency_id);
 
 	-- Calculate cost and profit
 	v_cost := i_amount * v_sell_rate;