diff --git a/Doc/library/imaplib.rst b/Doc/library/imaplib.rst
index b8ac03d..dc94beb 100644
--- a/Doc/library/imaplib.rst
+++ b/Doc/library/imaplib.rst
@@ -56,6 +56,7 @@
    write permission, and the mailbox will need to be re-opened to re-obtain write
    permission.
 
+
 There's also a subclass for secure connections:
 
 
@@ -68,6 +69,7 @@
    and *certfile* are also optional - they can contain a PEM formatted private key
    and certificate chain file for the SSL connection.
 
+
 The second subclass allows for connections created by a child process:
 
 
@@ -406,6 +408,15 @@
    This is an ``IMAP4rev1`` extension command.
 
 
+.. method:: IMAP4.starttls(ssl_context=None)
+
+   Send a ``STARTTLS`` command.  The *ssl_context* argument is optional
+   and should be a :class:`ssl.SSLContext` object.  This will enable
+   encryption on the IMAP connection.
+
+   .. versionadded:: 3.2
+
+
 .. method:: IMAP4.status(mailbox, names)
 
    Request named status conditions for *mailbox*.