Index: /trunk/dns.cgi
===================================================================
--- /trunk/dns.cgi	(revision 727)
+++ /trunk/dns.cgi	(revision 728)
@@ -120,5 +120,5 @@
 $webvar{startwith} =~ s/^(0-9|[a-z]).*/$1/ if $webvar{startwith};
 # not much call for chars not allowed in domain names
-$webvar{filter} =~ s/[^a-zA-Z0-9_.:\@-]//g if $webvar{filter};
+$webvar{filter} =~ s/[^a-zA-Z0-9_.:\@%-]//g if $webvar{filter};
 ## only set 'y' if box is checked, no other values legal
 ## however, see https://secure.deepnet.cx/trac/dnsadmin/ticket/31