diff --git a/doc/Jamfile.v2 b/doc/Jamfile.v2
index b98240e..006fe8b 100644
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@@ -3,7 +3,7 @@
 # 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 asciidoctor ;
+import asciidoctor ;
 
 html hash.html : hash.adoc ;