--- lib/PXElator/client.pm	2009/08/09 21:59:17	187
+++ lib/PXElator/client.pm	2009/08/09 22:05:09	188
@@ -43,6 +43,7 @@
 sub mac {
 	my $ip = shift;
 	my $mac = client::conf( $ip, 'mac' );
+	return '' unless $mac;
 	$mac =~ s{(..)}{$1:}g;
 	$mac =~ s{:$}{};
 	$mac = qq|<tt>$mac</tt>| if (caller(1))[3] =~ m{^httpd};