diff --git a/debian/control b/debian/control
index d04900f..32613c9 100644
--- a/debian/control
+++ b/debian/control
@@ -8,6 +8,7 @@ Uploaders: Ardo van Rangelrooij <ardo@debian.org>,
            Gianfranco Costamagna <locutusofborg@debian.org>
 Build-Depends: dh-autoreconf,
                debhelper (>= 9),
+               docbook-xsl,
                libxml-sax-perl,
                opensp,
                sp,