diff --git a/thunderbird.spec b/thunderbird.spec
index b8c1e4b..4aa1def 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -54,7 +54,7 @@
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
 Version:        17.0.7
-Release:        1%{?dist}
+Release:        2%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
@@ -448,6 +448,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Sun Aug 04 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 17.0.7-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
+
 * Tue Jun 25 2013 Jan Horak <jhorak@redhat.com> - 17.0.7-1
 - Update to 17.0.7