diff --git a/cnames_active.js b/cnames_active.js
index 7a884662..bf1129bc 100644
--- a/cnames_active.js
+++ b/cnames_active.js
@@ -311,6 +311,7 @@ var cnames_active = {
   "bunyan-serializer": "cchamberlain.github.io/bunyan-serializer", // noCF? (don´t add this in a new PR)
   "burst": "hugeen.github.io/burst", // noCF? (don´t add this in a new PR)
   "bustime": "agarzola.github.io/bustime", // noCF? (don´t add this in a new PR)
+  "butterfly": "cname.vercel-dns.com", // noCF
   "buttermilk": "buttermilk.netlify.com",
   "byakugan": "rockmanvnx6.github.io/byakugan-js",
   "c": "cocobear.github.io",