diff --git a/doc/src/sgml/stylesheet.xsl b/doc/src/sgml/stylesheet.xsl
index 72dcd2c986c21a94301be5cdc9367bc474d022fa..09d8981e568fb82be364ab8fccaba7bd97bc42dd 100644
--- a/doc/src/sgml/stylesheet.xsl
+++ b/doc/src/sgml/stylesheet.xsl
@@ -9,7 +9,7 @@
 
 
 <!-- Parameters -->
-<xsl:param name="base.dir" select="'html'"></xsl:param>
+<xsl:param name="base.dir" select="'html/'"></xsl:param>
 <xsl:param name="html.stylesheet" select="'stylesheet.css'"></xsl:param>
 <xsl:param name="use.id.as.filename" select="'1'"></xsl:param>
 <xsl:param name="make.valid.html" select="1"></xsl:param>