nameID attribute not showing up in SP request

[Stein, Eric]

Hi,
  I have a client sending me a nameID as part of their SAML request. I need to put that value into the request headers from my Shibboleth SP. This is their SAML:
            <saml:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:X509SubjectName">uid=XXXXX</saml:NameID>

  I added the attribute to attribute-map.xml:
       <Attribute name="urn:oasis:names:tc:SAML:1.1:nameid-format:X509SubjectName" id="nameid">
           <AttributeDecoder xsi:type="StringAttributeDecoder"/>
        </Attribute>

  I added the variable to Apache's httpd.conf and httpd-ssl.conf:
        JkEnvVar nameid undefined

  But when the request goes through and I call:
        <b>--nameid</b> = <%=request.getAttribute("nameid")%><br/>

  I'm still seeing:
        --nameid = undefined

Did I miss a step somewhere?

Thanks,
Eric Stein