diff --git a/conf/zpush/backend_carddav.php b/conf/zpush/backend_carddav.php
deleted file mode 100644
index 4b166ad5..00000000
--- a/conf/zpush/backend_carddav.php
+++ /dev/null
@@ -1,31 +0,0 @@
-<?php
-/***********************************************
-* File      :   config.php
-* Project   :   Z-Push
-* Descr     :   CardDAV backend configuration file
-************************************************/
-
-
-define('CARDDAV_PROTOCOL', 'https'); /* http or https */
-define('CARDDAV_SERVER', '127.0.0.1');
-define('CARDDAV_PORT', '443');
-define('CARDDAV_PATH', '/carddav/addressbooks/%u/');
-define('CARDDAV_DEFAULT_PATH', '/carddav/addressbooks/%u/contacts/'); /* subdirectory of the main path */
-define('CARDDAV_GAL_PATH', ''); /* readonly, searchable, not syncd */
-define('CARDDAV_GAL_MIN_LENGTH', 5);
-define('CARDDAV_CONTACTS_FOLDER_NAME', '%u Addressbook');
-define('CARDDAV_SUPPORTS_SYNC', false);
-
-// If the CardDAV server supports the FN attribute for searches
-// DAViCal supports it, but SabreDav, Owncloud and SOGo don't
-// Setting this to true will search by FN. If false will search by sn, givenName and email
-// It's safe to leave it as false
-define('CARDDAV_SUPPORTS_FN_SEARCH', false);
-
-
-// If your carddav server needs to use file extension to recover a vcard.
-//    Davical needs it
-//    SOGo official demo online needs it, but some SOGo installation don't need it, so test it
-define('CARDDAV_URL_VCARD_EXTENSION', '.vcf');
-
-?>