diff --git a/ipv6toolkit.changes b/ipv6toolkit.changes
index 03454ec..4e12f7e 100644
--- a/ipv6toolkit.changes
+++ b/ipv6toolkit.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jun 11 19:19:09 UTC 2020 - Martin Hauke <mardnh@gmx.de>
+
+- Set CFLAGS+=-fcommon
+
 -------------------------------------------------------------------
 Tue Dec 18 12:51:50 UTC 2018 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/ipv6toolkit.spec b/ipv6toolkit.spec
index 067e0fd..8534ee2 100644
--- a/ipv6toolkit.spec
+++ b/ipv6toolkit.spec
@@ -1,6 +1,7 @@
 #
 # spec file for package ipv6toolkit
 #
+# Copyright (c) 2020 SUSE LLC
 # Copyright (c) 2018, Martin Hauke <mardnh@gmx.de>
 #
 # All modifications and additions to the file contributed by third parties
@@ -12,9 +13,10 @@
 # license that conforms to the Open Source Definition (Version 1.9)
 # published by the Open Source Initiative.
 
-# Please submit bugfixes or comments via http://bugs.opensuse.org/
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
 #
 
+
 Name:           ipv6toolkit
 Version:        2.0
 Release:        0
@@ -59,7 +61,7 @@ List of tools:
 %setup -q -n %{name}-v%{version}
 
 %build
-export CFLAGS='%{optflags}'
+export CFLAGS='%{optflags} -fcommon'
 make %{?_smp_mflags}
 
 %install