diff --git a/avr-libc.spec b/avr-libc.spec
index d46edf1..bef174f 100644
--- a/avr-libc.spec
+++ b/avr-libc.spec
@@ -7,7 +7,7 @@
 
 Name:           avr-libc
 Version:        1.6.4
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        C library for use with GCC on Atmel AVR microcontrollers
 Group:          Development/Tools
 License:        BSD
@@ -104,6 +104,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Fri Jul 24 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.6.4-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild
+
 * Tue May 26 2009 Michael Schwendt <mschwendt@fedoraproject.org> - 1.6.4-4
 - Fix unowned versioned documentation directory (#473625).