diff --git a/glibc.spec b/glibc.spec
index 14a2569..4390557 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -95,7 +95,7 @@
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: %{glibcrelease}
+Release: %{glibcrelease}.1
 # GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
 # Things that are linked directly into dynamically linked programs
 # and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
@@ -1814,6 +1814,9 @@ rm -f *.filelist*
 %endif
 
 %changelog
+* Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.21.90-15.1
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
 * Wed Jun  3 2015 Carlos O'Donell <carlos@redhat.com> - 2.21.90-15
 - Remove patch to increase DTV surplus which is no longer needed after
   upstream commit f8aeae347377f3dfa8cbadde057adf1827fb1d44.