diff --git a/docs/api/Dispatcher.md b/docs/api/Dispatcher.md
index 70140ab47b9..d2c4228a8f9 100644
--- a/docs/api/Dispatcher.md
+++ b/docs/api/Dispatcher.md
@@ -489,6 +489,8 @@ The `RequestOptions.method` property should not be value `'CONNECT'`.
 - `body`
 - `bodyUsed`
 
+`body` can not be consumed twice. For example, calling `text()` after `json()` throws `TypeError`.
+
 `body` contains the following additional extensions:
 
 - `dump({ limit: Integer })`, dump the response by reading up to `limit` bytes without killing the socket (optional) - Default: 262144.