diff --git a/matchbox-window-manager.spec b/matchbox-window-manager.spec
index 90646f6..957409d 100644
--- a/matchbox-window-manager.spec
+++ b/matchbox-window-manager.spec
@@ -1,10 +1,13 @@
 %define libmatchbox_devel_ver 1.9-2
 %define alphatag 20070628svn
 
+# https://src.fedoraproject.org/rpms/redhat-rpm-config/blob/master/f/buildflags.md#legacy-fcommon
+%define _legacy_common_support 1
+
 Summary:       Window manager for the Matchbox Desktop
 Name:          matchbox-window-manager
 Version:       1.2
-Release:       26.%{alphatag}%{?dist}
+Release:       27.%{alphatag}%{?dist}
 Url:           http://matchbox-project.org/
 # svn checkout http://svn.o-hand.com/repos/matchbox/trunk/matchbox-window-manager
 License:       GPLv2+
@@ -57,6 +60,9 @@ make install DESTDIR=$RPM_BUILD_ROOT
 %{_datadir}/themes/*
 
 %changelog
+* Thu Feb  6 2020 Petr Lautrbach <plautrba@redhat.com> - 1.2-27.20070628svn
+- add -fcommon to the flags (#1799634)
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.2-26.20070628svn
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild