diff --git a/docs/config.xsl b/docs/config.xsl
index 7aa9def..59490e7 100644
--- a/docs/config.xsl
+++ b/docs/config.xsl
@@ -3,4 +3,5 @@
                 xmlns:fo="http://www.w3.org/1999/XSL/Format"
                 version="1.0">
   <xsl:param name="html.stylesheet" select="'docbook.css'"/>
+  <xsl:param name="generate.consistent.ids" select="1"/>
 </xsl:stylesheet>