diff --git a/clustal-omega.spec b/clustal-omega.spec
index c36937c..5965f3c 100644
--- a/clustal-omega.spec
+++ b/clustal-omega.spec
@@ -1,6 +1,6 @@
 Name:		clustal-omega
 Version:	1.2.1
-Release:	5%{?dist}
+Release:	6%{?dist}
 Summary:	Clustal Omega is a command-line multiple sequence alignment tool
 
 License:	GPLv2+
@@ -53,6 +53,9 @@ rm -f %{buildroot}%{_libdir}/libclustalo.la %{buildroot}%{_libdir}/libclustalo.a
 %{_includedir}/clustalo/
 
 %changelog
+* Sat May 02 2015 Kalev Lember <kalevlember@gmail.com> - 1.2.1-6
+- Rebuilt for GCC 5 C++11 ABI change
+
 * Sat Aug 16 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.1-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild