diff --git a/cloudflare_inc/cloudflare_owned_NS.txt b/cloudflare_inc/cloudflare_owned_NS.txt
index d7bd044e91..64870426d9 100644
--- a/cloudflare_inc/cloudflare_owned_NS.txt
+++ b/cloudflare_inc/cloudflare_owned_NS.txt
@@ -385,6 +385,7 @@ isaac.ns.cloudflare.com
 isabel.ns.cloudflare.com
 ishaan.ns.cloudflare.com
 isla.ns.cloudflare.com
+issac.ns.cloudflare.com
 itzel.ns.cloudflare.com
 ivan.ns.cloudflare.com
 ivy.ns.cloudflare.com