diff --git a/doc/api/http.md b/doc/api/http.md
index 391a2bf4232f7a..f92fd1f4eb0efc 100644
--- a/doc/api/http.md
+++ b/doc/api/http.md
@@ -625,8 +625,9 @@ added: v0.5.9
 * `timeout` {number} Milliseconds before a request times out.
 * `callback` {Function} Optional function to be called when a timeout occurs. Same as binding to the `timeout` event.
 
-Once a socket is assigned to this request and is connected
-[`socket.setTimeout()`][] will be called.
+Once a socket is assigned to this request [`socket.setTimeout()`][] will be called.
+
+Note that this behaviour changes in Node.js version 9 and higher.
 
 Returns `request`.