diff --git a/virtual_feature.pl b/virtual_feature.pl
index 9a031fc..b36cc0f 100644
--- a/virtual_feature.pl
+++ b/virtual_feature.pl
@@ -489,7 +489,7 @@ sub feature_modify
 	# Rename log files if needed
 	my $new_alog = &virtual_server::get_apache_template_log($d, 0);
 	my $new_elog = &virtual_server::get_apache_template_log($d, 1);
-	if ($old_alog && $old_elog && $old_alog ne $new_alog) {
+	if (defined($old_alog) && defined($old_elog) && $old_alog ne $new_alog) {
 		&$virtual_server::first_print($text{'feat_modifylog'});
 		my $server = &find_domain_server($d);
 		if (!$server) {