diff --git a/ipv6/bd.cidr b/ipv6/bd.cidr
index 6211fc1a..d68a2259 100644
--- a/ipv6/bd.cidr
+++ b/ipv6/bd.cidr
@@ -588,6 +588,7 @@
 2001:df4:8340::/48
 2001:df4:8440::/48
 2001:df4:87c0::/48
+2001:df4:8940::/48
 2001:df4:8d80::/48
 2001:df4:8f80::/48
 2001:df4:9080::/48