diff --git a/doc/Jamfile b/doc/Jamfile
index 6502698..fb4caba 100644
--- a/doc/Jamfile
+++ b/doc/Jamfile
@@ -4,7 +4,7 @@
 # Distributed under the Boost Software License, Version 1.0.
 # (http://www.boost.org/LICENSE_1_0.txt)
 
-using asciidoctor ;
+import asciidoctor ;
 
 html endian.html : endian.adoc ;