diff --git a/Box2D.spec b/Box2D.spec
index bcaf627..1eb966c 100644
--- a/Box2D.spec
+++ b/Box2D.spec
@@ -1,6 +1,6 @@
 Name: Box2D
 Version:  2.2.1
-Release:  3%{?dist}
+Release:  4%{?dist}
 Summary: A 2D Physics Engine for Games
 
 Group: Development/Libraries
@@ -75,6 +75,9 @@ find %{buildroot} -name '*.a' | xargs rm
 
 
 %changelog
+* Wed Feb 13 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.2.1-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
+
 * Mon Aug 06 2012 Jon Ciesla <limburgher@gmail.com> - 2.2.1-3
 - Review fixes from BZ 844090 comment 6.