diff --git a/cnames_active.js b/cnames_active.js
index 5a14424ede0..a29741f1631 100644
--- a/cnames_active.js
+++ b/cnames_active.js
@@ -1184,6 +1184,7 @@ var cnames_active = {
   "fw": "fjs.alwaysdata.net",
   "fy": "fyjs.netlify.app",
   "fyi": "tobihrbr.github.io/fyi",
+  "forum": "appcn.alwaysdata.net"
   "g": "nodebox.github.io/g.js",
   "g-point": "bdvela.github.io/g-point",
   "gaiman": "jcubic.github.io/gaiman",