diff --git a/xen.spec b/xen.spec
index 79e109b..0d557bd 100644
--- a/xen.spec
+++ b/xen.spec
@@ -51,7 +51,7 @@
 Summary: Xen is a virtual machine monitor
 Name:    xen
 Version: 4.5.0
-Release: 11%{?dist}
+Release: 12%{?dist}
 Group:   Development/Libraries
 License: GPLv2+ and LGPLv2+ and BSD
 URL:     http://xen.org/
@@ -861,6 +861,9 @@ rm -rf %{buildroot}
 %endif
 
 %changelog
+* Fri Jun 19 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.5.0-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
 * Tue Jun 16 2015 Michael Young <m.a.young@durham.ac.uk>
 - gcc 5 bug is fixed so remove workaround