diff --git a/afpfs-ng.spec b/afpfs-ng.spec
index 517b27c..fff2582 100644
--- a/afpfs-ng.spec
+++ b/afpfs-ng.spec
@@ -5,7 +5,7 @@
 
 Name:           afpfs-ng
 Version:        0.8.1
-Release:        29%{?dist}
+Release:        30%{?dist}
 Summary:        Apple Filing Protocol client
 
 License:        GPL+
@@ -59,6 +59,7 @@ Library for dynamic linking and header files of afpfs-ng.
 # Prerequisite `configure.ac' is newer than target `aclocal.m4'.
 touch --reference aclocal.m4 configure.ac Makefile.in
 
+export CFLAGS="${RPM_OPT_FLAGS} -fcommon" 
 %configure %{?_without_fuse:--disable-fuse} --disable-static
 make %{?_smp_mflags}
 
@@ -101,6 +102,9 @@ cp -p include/* %{buildroot}%{_includedir}/afpfs-ng
 
 
 %changelog
+* Wed Apr 22 2020 Michal Ambroz <rebus _AT seznam.cz> - 0.8.1-30
+- fix FTBFS - multiple definition of - build legacy code with -fcommon
+
 * Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.8.1-29
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild