diff --git a/gnulib.spec b/gnulib.spec
index 79b1f86..9746f00 100644
--- a/gnulib.spec
+++ b/gnulib.spec
@@ -48,7 +48,7 @@ It can be used to improve portability and other functionality in your programs.
 
 Name:     gnulib
 Version:  0
-Release:  20.%{gitdate}git%{?dist}
+Release:  21.%{gitdate}git%{?dist}
 Summary:  GNU Portability Library
 Group:    Development/System
 License:  Public Domain and BSD and GPLv2+ and GPLv3 and GPLv3+ and LGPLv2 and LGPLv2+ and LGPLv3+
@@ -217,6 +217,9 @@ It can be enabled for specific files by setting appropriate git attributes.
 
 #-------------------------------------------------------------------------
 %changelog
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0-21.20170217git
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Feb 17 2017 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 0-20.20170217git
 - Update on 20170217.