diff --git a/hash/doc/Jamfile.v2 b/hash/doc/Jamfile.v2
index c21c881..62e2798 100644
--- a/hash/doc/Jamfile.v2
+++ b/hash/doc/Jamfile.v2
@@ -3,6 +3,9 @@
 # Distributed under the Boost Software License, Version 1.0. (See accompanying
 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
+using boostbook ;
+using quickbook ;
+
 xml hash : hash.qbk ;
 boostbook standalone : hash :
     <xsl:param>boost.root=../../../../..