diff --git a/docs/patterns/javascript.rst b/docs/patterns/javascript.rst
index d58a3eb6b4..ee9b0ec332 100644
--- a/docs/patterns/javascript.rst
+++ b/docs/patterns/javascript.rst
@@ -244,8 +244,9 @@ Receiving JSON in Views
 
 Use the :attr:`~flask.Request.json` property of the
 :data:`~flask.request` object to decode the request's body as JSON. If
-the body is not valid JSON, or the ``Content-Type`` header is not set to
-``application/json``, a 400 Bad Request error will be raised.
+the body is not valid JSON, a 400 Bad Request error will be raised. If
+the ``Content-Type`` header is not set to ``application/json``, a 415
+Unsupported Media Type error will be raised.
 
 .. code-block:: python