How do I get these XML values with Linq to XML ?

How do I get these XML values with Linq to XML ?

I want a query that will return a IEnumerable of string and inside that have
'as.m3' 'as.m4'
I have tried xDoc.Elements("moduleid") and xDoc.Descendents("moduleid")
with no luck
<?xml version="1.0" encoding="UTF-8">
<root>
<code>
M11088MUBWWLSRSV9LTJBH81QT
</code>
<moduleid>as.m3</moduleid>
<moduleid>as.m4</moduleid>
</root>