diff --git a/docs/frontends/FTP-and-SFTP.rst b/docs/frontends/FTP-and-SFTP.rst
index be9da9e71..786d2f7fe 100644
--- a/docs/frontends/FTP-and-SFTP.rst
+++ b/docs/frontends/FTP-and-SFTP.rst
@@ -264,9 +264,7 @@ See also wiki:SftpFrontend_.
 Known Issues in the FTP Frontend
 --------------------------------
 
-Mutable files are not supported by the FTP frontend (`ticket
-#680`_). Currently, a directory containing mutable files cannot even be
-listed over FTP.
+Mutable files are not supported by the FTP frontend (`ticket #680`_).
 
 Non-ASCII filenames are not supported by FTP (`ticket #682`_).
 
@@ -277,4 +275,3 @@ fails because it does meet the "servers of happiness" threshold (`ticket
 .. _ticket #680: https://tahoe-lafs.org/trac/tahoe-lafs/ticket/680
 .. _ticket #682: https://tahoe-lafs.org/trac/tahoe-lafs/ticket/682
 .. _ticket #1081: https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1081
-.. _ticket #1688: https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1688