diff --git a/docs/supported.rst b/docs/supported.rst
index c01757d..5c038ca 100644
--- a/docs/supported.rst
+++ b/docs/supported.rst
@@ -51,10 +51,6 @@ Contacts
 - khard_, a commandline addressbook supporting :doc:`vdir <vdir>`.  You can use
   :py:class:`vdirsyncer.storage.FilesystemStorage` with it.
 
-- `The ppl addressbook <http://ppladdressbook.org/>`_ uses a storage format
-  similar to :doc:`vdir <vdir>`. There are some pitfalls though, `see the notes
-  on the related issue <https://github.com/hnrysmth/ppl/issues/47>`_.
-
 - contactquery.c_, a small program explicitly written for querying vdirs from
   mutt.