diff --git a/advanced/06-rfc6761.conf b/advanced/06-rfc6761.conf
index e03569e8..fcdd0010 100644
--- a/advanced/06-rfc6761.conf
+++ b/advanced/06-rfc6761.conf
@@ -25,11 +25,12 @@ server=/localhost/
 server=/invalid/
 
 # The same RFC requests something similar for
-#     16.172.in-addr.arpa.  22.172.in-addr.arpa.  27.172.in-addr.arpa.
-#     17.172.in-addr.arpa.  30.172.in-addr.arpa.  28.172.in-addr.arpa.
-#     18.172.in-addr.arpa.  23.172.in-addr.arpa.  29.172.in-addr.arpa.
-#     19.172.in-addr.arpa.  24.172.in-addr.arpa.  31.172.in-addr.arpa.
-#     20.172.in-addr.arpa.  25.172.in-addr.arpa.  168.192.in-addr.arpa.
+#     10.in-addr.arpa.      21.172.in-addr.arpa.  27.172.in-addr.arpa.
+#     16.172.in-addr.arpa.  22.172.in-addr.arpa.  28.172.in-addr.arpa.
+#     17.172.in-addr.arpa.  23.172.in-addr.arpa.  29.172.in-addr.arpa.
+#     18.172.in-addr.arpa.  24.172.in-addr.arpa.  30.172.in-addr.arpa.
+#     19.172.in-addr.arpa.  25.172.in-addr.arpa.  31.172.in-addr.arpa.
+#     20.172.in-addr.arpa.  26.172.in-addr.arpa.  168.192.in-addr.arpa.
 # Pi-hole implements this via the dnsmasq option "bogus-priv" (see
 # 01-pihole.conf) because this also covers IPv6.