diff --git a/doc/Jamfile b/doc/Jamfile
index 210235d..417891c 100644
--- a/doc/Jamfile
+++ b/doc/Jamfile
@@ -5,7 +5,7 @@
 # See accompanying file LICENSE_1_0.txt or copy at
 # http://www.boost.org/LICENSE_1_0.txt
 
-using asciidoctor ;
+import asciidoctor ;
 
 html mp11.html : mp11.adoc ;