I'm want to indent only 'section/para', not 'section/para/programlisting'

When I use custom xsl to indent 'section/para':

  <xsl:attribute-set name="standard.para.spacing"
use-attribute-sets="normal.para.spacing">
    <xsl:attribute name="text-indent">24pt</xsl:attribute>
  </xsl:attribute-set>

  <xsl:template match="section/para">
    <fo:block xsl:use-attribute-sets="standard.para.spacing">
      <xsl:call-template name="anchor"/>
      <xsl:apply-templates/>
    </fo:block>
  </xsl:template>

But 'section/para/programlisting' indent too, how can I avoid it indent any
subelements of 'section/para'?

Thanks,

Dongsheng Song