diff --git a/debian/control b/debian/control
index 653f4ed..e865579 100644
--- a/debian/control
+++ b/debian/control
@@ -3,7 +3,7 @@ Priority: extra
 Maintainer: Stéphane Raimbault <stephane.raimbault@gmail.com>
 Standards-Version: 3.9.1
 Section: libs
-Build-Depends: debhelper (>= 6), cdbs (>= 0.4.43), autotools-dev, libtool, dpkg-dev (>= 1.13.19)
+Build-Depends: debhelper (>= 6), cdbs (>= 0.4.43), autotools-dev, libtool, dpkg-dev (>= 1.13.19), asciidoc
 Homepage: http://libmodbus.org/
 
 Package: libmodbus