<?xml version="1.0" encoding="utf-8"?>
<zone target="ACCEPT">
  <short>Trusted</short>
  <description>All network connections are accepted.</description>
  <masquerade enabled="Yes"/>
</zone>

<?xml version="1.0" encoding="utf-8"?>
<zone target="ACCEPT">
  <short>Trusted</short>
  <description>All network connections are accepted.</description>
  <masquerade/>
</zone>

Remove obsolete enabled="Yes" in masquerade
Remove obsolete enabled="Yes" in masquerade
