diff --git a/a2ps.spec b/a2ps.spec
index d991511..fb790c0 100644
--- a/a2ps.spec
+++ b/a2ps.spec
@@ -36,7 +36,7 @@ Patch27: a2ps-netscape.patch
 Patch28: a2ps-wdiff.patch
 Patch29: a2ps-U.patch
 Requires: fileutils sh-utils info
-BuildRequires: /usr/bin/emacs, gperf, flex, libtool, texinfo
+BuildRequires: /usr/bin/emacs, gperf, flex, libtool, texinfo, groff
 Url: http://www.inf.enst.fr/~demaille/a2ps/
 BuildRoot: %{_tmppath}/%{name}-%{version}-root
 Requires: psutils
@@ -232,6 +232,9 @@ fi
 %dir %{_datadir}/a2ps
 
 %changelog
+* Fri Aug 25 2006 Tim Waugh <twaugh@redhat.com>
+- Build requires groff.
+
 * Fri Aug 25 2006 Tim Waugh <twaugh@redhat.com> 4.13b-55
 - Use better manifest flags for fonts.map.