diff --git a/ClanLib1.spec b/ClanLib1.spec
index f53d310..f179329 100644
--- a/ClanLib1.spec
+++ b/ClanLib1.spec
@@ -3,7 +3,7 @@
 Summary:        Cross platform C++ game library
 Name:           ClanLib1
 Version:        1.0.0
-Release:        20%{?dist}
+Release:        21%{?dist}
 Group:          System Environment/Libraries
 License:        zlib
 URL:            http://www.clanlib.org/
@@ -98,6 +98,9 @@ done
 
 
 %changelog
+* Tue Jun 16 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.0.0-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
 * Sat May 02 2015 Kalev Lember <kalevlember@gmail.com> - 1.0.0-20
 - Rebuilt for GCC 5 C++11 ABI change