diff --git a/json/helpers_cache.json b/json/helpers_cache.json
index bc8fd66..fa1ac6d 100644
--- a/json/helpers_cache.json
+++ b/json/helpers_cache.json
@@ -2701,7 +2701,9 @@
     "categories": [
       16
     ],
-    "notes": [],
+    "notes": [
+      "You may need to configure the `WEBHOOK_URL` in the config file when using a domain."
+    ],
     "type": "ct"
   },
   {