diff --git a/rrdtool.changes b/rrdtool.changes
index 560de70..65da438 100644
--- a/rrdtool.changes
+++ b/rrdtool.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Oct 26 15:34:06 UTC 2012 - coolo@suse.com
+
+- add explicit buildrequire on groff for man pages
+
 -------------------------------------------------------------------
 Thu May 24 10:25:44 UTC 2012 - idonmez@suse.com
 
diff --git a/rrdtool.spec b/rrdtool.spec
index 3605372..cc45941 100644
--- a/rrdtool.spec
+++ b/rrdtool.spec
@@ -20,6 +20,7 @@ Name:           rrdtool
 BuildRequires:  cairo-devel
 BuildRequires:  freetype2-devel
 BuildRequires:  glib2-devel
+BuildRequires:  groff
 BuildRequires:  intltool
 BuildRequires:  libart_lgpl-devel
 BuildRequires:  libpng-devel