diff --git a/doc/api/async_hooks.md b/doc/api/async_hooks.md
index 3e47f366d74b5a..b74d52c5f8bcc5 100644
--- a/doc/api/async_hooks.md
+++ b/doc/api/async_hooks.md
@@ -329,6 +329,8 @@ The `type` is a string identifying the type of resource that caused
 `init` to be called. Generally, it will correspond to the name of the
 resource's constructor.
 
+Valid values are:
+
 ```text
 FSEVENTWRAP, FSREQCALLBACK, GETADDRINFOREQWRAP, GETNAMEINFOREQWRAP, HTTPINCOMINGMESSAGE,
 HTTPCLIENTREQUEST, JSSTREAM, PIPECONNECTWRAP, PIPEWRAP, PROCESSWRAP, QUERYWRAP,
@@ -337,6 +339,9 @@ TTYWRAP, UDPSENDWRAP, UDPWRAP, WRITEWRAP, ZLIB, SSLCONNECTION, PBKDF2REQUEST,
 RANDOMBYTESREQUEST, TLSWRAP, Microtask, Timeout, Immediate, TickObject
 ```
 
+These values can change in any Node.js release. Furthermore users of [`AsyncResource`][]
+likely provide other values.
+
 There is also the `PROMISE` resource type, which is used to track `Promise`
 instances and asynchronous work scheduled by them.