--- a/lib/DNS/Vi.pm	Tue Feb 03 23:10:24 2015 +0100
+++ b/lib/DNS/Vi.pm	Tue Feb 03 23:10:38 2015 +0100
@@ -214,6 +214,7 @@
     # first make a backup copy
     my $tmp = File::Temp->new();
     $tmp->print(nice @zone);
+    $tmp->say('; vim:tw=0:');
     $tmp->flush();
 
     system $arg{-editor} => $tmp->filename;