diff --git a/doc/Jamfile.v2 b/doc/Jamfile.v2
index c8740aa..15c7372 100644
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@@ -55,8 +55,8 @@ boostbook standalone
    :
       intrusive
    :
-        <xsl:param>boost.root=../../../..
-        <xsl:param>boost.libraries=../../../../libs/libraries.htm
+        <format>html:<xsl:param>boost.root=../../../..
+        <format>html:<xsl:param>boost.libraries=../../../../libs/libraries.htm
         <xsl:param>generate.section.toc.level=3
         <xsl:param>chunk.first.sections=1
         <dependency>autodoc
@@ -76,6 +76,7 @@ boostbook standalone
 
         # Choose indexing method for html:
         <format>html:<auto-index-internal>on
+        <format>docbook:<auto-index-internal>on
 
         # Set the name of the script file to use (index.idx is popular):
         <auto-index-script>$(here)/index.idx
@@ -93,3 +94,5 @@ boostbook standalone
 
 install pdfinstall : standalone/<format>pdf : <name>intrusive.pdf <location>. <install-type>PDF <format>pdf ;
 explicit pdfinstall ;
+
+