1 files changed, 2 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index d092efa..01ba98b 100644
--- a/Makefile
+++ b/Makefile
@@ -36,7 +36,8 @@ ZONES!=		bin/get_catalog "catalog.invalid" "${MASTER}"
 
 # These zones are always insecure, because they don't exist on the Internet.
 INSECURE_ZONES= \
-	18.198.in-addr.arpa
+	18.198.in-addr.arpa \
+	d.f.ip6.arpa
 
 #######################################################################
 # Unbound configuration for resolvers.