diff --git a/html/cgi-bin/vpnmain.cgi b/html/cgi-bin/vpnmain.cgi
index e29400a1a..6bae487b5 100755
--- a/html/cgi-bin/vpnmain.cgi
+++ b/html/cgi-bin/vpnmain.cgi
@@ -2092,7 +2092,7 @@ if(($cgiparams{'ACTION'} eq $Lang::tr{'advanced'}) ||
 	    goto ADVANCED_ERROR;
 	}
 	foreach my $val (@temp) {
-	    if ($val !~ /^(aes256|aes128|3des)$/) {
+	    if ($val !~ /^(aes256|aes192|aes128|3des)$/) {
 		$errormessage = $Lang::tr{'invalid input'};
 		goto ADVANCED_ERROR;
 	    }