diff --git a/zhu3d.spec b/zhu3d.spec
index be50f43..af399b7 100644
--- a/zhu3d.spec
+++ b/zhu3d.spec
@@ -1,6 +1,6 @@
 Name:      zhu3d
 Version:   4.2.6
-Release:   5%{dist}
+Release:   6%{dist}
 Summary:   Interactive OpenGL-based mathematical function viewer
 Group:     Applications/System
 License:   GPLv3
@@ -74,6 +74,9 @@ rm -rf %{buildroot}
 %{_datadir}/applications/zhu3d.desktop
  
 %changelog
+* Fri Jun 19 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.2.6-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
 * Sat May 02 2015 Kalev Lember <kalevlember@gmail.com> - 4.2.6-5
 - Rebuilt for GCC 5 C++11 ABI change