diff --git a/domains/cdt.json b/domains/cdt.json
index de1119cac2..af647de65d 100644
--- a/domains/cdt.json
+++ b/domains/cdt.json
@@ -3,6 +3,6 @@
     "username": "CDT"
   },
   "records": {
-    "CNAME": "CDT.github.io"
+    "CNAME": "cdt.github.io"
   }
 }