diff --git a/src/etc/bind/root.hint b/src/etc/bind/root.hint
index 4ed4c0b3..24bf09cc 100644
--- a/src/etc/bind/root.hint
+++ b/src/etc/bind/root.hint
@@ -1,3 +1,5 @@
+; $Openbsd$
+;
 ;       This file holds the information on root name servers needed to
 ;       initialize cache of Internet domain name servers
 ;       (e.g. reference this file in the "cache  .  <file>"