diff --git a/doc/Jamfile.v2 b/doc/Jamfile.v2
index 7e4ac9d..a8dac07 100644
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@@ -34,6 +34,7 @@ boostbook standalone
         # better use SVG's instead:
         <format>pdf:<xsl:param>admon.graphics.extension=".svg"
         <format>pdf:<xsl:param>admon.graphics.path=$(boost-images)/
+        <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/doc/html
     ;
 
 install html : ../../../doc/html/boostbook.css ;