Set currency name in magento

I have a store localized in Romania. Recently I noticed that most online from Romania have currency as Leu/Lei instead of RON. I was trying开发者_开发问答 to change that too but probably I'm missing something.

in \magento\lib\Zend\Locale\Data\root.xml it's set like this:

<currency type="RON">
    <symbol>RON</symbol>
</currency>

and ro.xml (same path) have:

<currency type="RON">
    <displayName>leu</displayName>
    <displayName count="one">leu</displayName>
    <displayName count="few">lei</displayName>
    <displayName count="other">lei</displayName>
</currency>

I didn't see any other place where currency is set. Any clues?