diff --git a/doc/api/diagnostics_channel.md b/doc/api/diagnostics_channel.md
index 6c4ace3bbd615e..70cbc55a56b84c 100644
--- a/doc/api/diagnostics_channel.md
+++ b/doc/api/diagnostics_channel.md
@@ -264,6 +264,10 @@ channel.subscribe((message, name) => {
 added:
  - v15.1.0
  - v14.17.0
+changes:
+  - version: REPLACEME
+    pr-url: REPLACEME
+    description: Added to channels without subscribers.
 -->
 
 * `onMessage` {Function} The previous subscribed handler to remove