diff --git a/firewalld.changes b/firewalld.changes
index 1369fa2..ec208aa 100644
--- a/firewalld.changes
+++ b/firewalld.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Mon Aug 13 19:08:39 UTC 2018 - mchandras@suse.de
+
+- Also switch firewall backend fallback to 'iptables' (bsc#1102761)
+  This ensures that existing configuration files will keep working
+  even if FirewallBackend option is missing.
+
 -------------------------------------------------------------------
 Fri Aug 10 06:23:35 UTC 2018 - mchandras@suse.de
 
diff --git a/firewalld.spec b/firewalld.spec
index 10f3271..04f8320 100644
--- a/firewalld.spec
+++ b/firewalld.spec
@@ -116,6 +116,7 @@ rm config/services/high-availability.xml
 
 # bsc#1102761 - switch to iptables as default
 sed -i "/^FirewallBackend/s/=.*/=iptables/" config/firewalld.conf
+sed -i '/^FALLBACK_FIREWALL_BACKEND/s/=.*/= "iptables"/' src/firewall/config/__init__.py.in 
 
 %build
 export PYTHON="%{_bindir}/python3"