diff --git a/doc/Jamfile.v2 b/doc/Jamfile.v2
index 2e166bd..41c0dcc 100644
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@@ -11,4 +11,5 @@ boostbook tribool
 	tribool.boostbook 
 	:
         <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/doc/html
+        <dependency>reference
 	;