diff --git a/spamassassin.spec b/spamassassin.spec
index 7ab24ed..877eea1 100644
--- a/spamassassin.spec
+++ b/spamassassin.spec
@@ -6,7 +6,7 @@
 Summary: Spam filter for email which can be invoked from mail delivery agents.
 Name: spamassassin
 Version: 3.1.3
-Release: 2.fc6
+Release: 3
 License: Apache License
 Group: Applications/Internet
 URL: http://spamassassin.apache.org/
@@ -26,6 +26,7 @@ Requires: perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
 Buildroot: %{_tmppath}/%{name}-root
 Prefix: %{_prefix}
 Requires: /sbin/chkconfig /sbin/service
+Requires(post): diffutils
 
 BuildRequires: perl >= 2:5.8.0
 BuildRequires: perl(Net::DNS)
@@ -157,6 +158,9 @@ fi
 exit 0
 
 %changelog
+* Tue Jun 27 2006 Florian La Roche <laroche@redhat.com> - 3.1.3-3
+- require diffutils for the post script (cmp is used)
+
 * Wed Jun 07 2006 Warren Togami <wtogami@redhat.com> - 3.1.3-2
 - start spamd before sendmail (#193818)
 - require perl-Archive-Tar (#193100)