diff --git a/doc/Jamfile.v2 b/doc/Jamfile.v2
index f970d61..6824339 100644
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@@ -30,8 +30,8 @@ boostbook standalone
    :
       move
    :
-        <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