diff --git a/Doc/library/httplib.rst b/Doc/library/httplib.rst
index 7bd85a3..58a59a8 100644
--- a/Doc/library/httplib.rst
+++ b/Doc/library/httplib.rst
@@ -526,6 +526,9 @@
 
    .. versionadded:: 2.4
 
+.. method:: HTTPResponse.fileno()
+
+   Returns the ``fileno`` of the underlying socket.
 
 .. attribute:: HTTPResponse.msg