diff --git a/filter/config.Y b/filter/config.Y
index e031abd3..c73271ea 100644
--- a/filter/config.Y
+++ b/filter/config.Y
@@ -9,7 +9,7 @@
 	FIXME: whole system of paths, path ~ string, path.prepend(), path.originate
 	FIXME: create community lists
 	FIXME: '! =' should not be permitted. Ze `!=' by nemelo byt totez jako `! =' Nadefinujes si pres %token novy token a do cf-lex.l pridas nove pravidlo, ktere jej rozpoznava. Napriklad !=      return NEQ;
-
+	FIXME: IP addresses in ipv6
  */
 
 CF_HDR