diff --git a/doc/guide/bind10-guide.xml b/doc/guide/bind10-guide.xml
index d319109daf..6477b5df25 100644
--- a/doc/guide/bind10-guide.xml
+++ b/doc/guide/bind10-guide.xml
@@ -2138,6 +2138,7 @@ DDNS/zones[0]/update_acl[1]     {"action": "ACCEPT", "from": "::1", "key": "key.
         it's not possible to specify access control with higher
         granularity such as for particular domain names or specific
         types of RRs.
+	<!-- See Trac ticket #2065 -->
       </para>
 
       <note><simpara>