diff --git a/modules/game_npctrade/npctrade.lua b/modules/game_npctrade/npctrade.lua
index d44c8322..454fc659 100644
--- a/modules/game_npctrade/npctrade.lua
+++ b/modules/game_npctrade/npctrade.lua
@@ -391,7 +391,7 @@ end
 
 function NPCTrade.onTradeClick()
   if getCurrentTradeType() == BUY then
-    g_game.buyItem(selectedItem.ptr, quantityScroll:getValue(), buyWithBackpack:isChecked(), ignoreCapacity:isChecked())
+    g_game.buyItem(selectedItem.ptr, quantityScroll:getValue(), ignoreCapacity:isChecked(), buyWithBackpack:isChecked())
   else
     g_game.sellItem(selectedItem.ptr, quantityScroll:getValue(), ignoreEquipped:isChecked())
   end