diff --git a/doc/Jamfile b/doc/Jamfile
index 106dc59..539ce26 100644
--- a/doc/Jamfile
+++ b/doc/Jamfile
@@ -4,7 +4,7 @@
 # (See accompanying file LICENSE_1_0.txt or copy at
 # http://www.boost.org/LICENSE_1_0.txt)
 
-using asciidoctor ;
+import asciidoctor ;
 
 html assert.html : index.adoc ;