diff --git a/phpgwapi/setup/setup.inc.php b/phpgwapi/setup/setup.inc.php
index 7c3d15ee55..eae402e0e9 100755
--- a/phpgwapi/setup/setup.inc.php
+++ b/phpgwapi/setup/setup.inc.php
@@ -12,7 +12,7 @@
 /* Basic information about this app */
 $setup_info['phpgwapi']['name']      = 'phpgwapi';
 $setup_info['phpgwapi']['title']     = 'EGroupware API';
-$setup_info['phpgwapi']['version']   = '1.9.013';
+$setup_info['phpgwapi']['version']   = '1.9.014';
 $setup_info['phpgwapi']['versions']['current_header'] = '1.29';
 $setup_info['phpgwapi']['enable']    = 3;
 $setup_info['phpgwapi']['app_order'] = 1;
@@ -74,5 +74,3 @@ $setup_info['groupdav']['author'] = $setup_info['groupdav']['maintainer'] = arra
 $setup_info['groupdav']['license'] = 'GPL';
 $setup_info['groupdav']['hooks']['preferences']	= 'groupdav_hooks::menus';
 $setup_info['groupdav']['hooks']['settings']	= 'groupdav_hooks::settings';
-
-
diff --git a/phpgwapi/setup/tables_current.inc.php b/phpgwapi/setup/tables_current.inc.php
index 96d5dcf24f..5d1c87a860 100644
--- a/phpgwapi/setup/tables_current.inc.php
+++ b/phpgwapi/setup/tables_current.inc.php
@@ -366,12 +366,17 @@ $phpgw_baseline = array(
 			'list_name' => array('type' => 'varchar','precision' => '80','nullable' => False),
 			'list_owner' => array('type' => 'int','precision' => '4','nullable' => False),
 			'list_created' => array('type' => 'int','precision' => '8'),
-			'list_creator' => array('type' => 'int','precision' => '4')
+			'list_creator' => array('type' => 'int','precision' => '4'),
+			'list_uid' => array('type' => 'varchar','precision' => '255'),
+			'list_carddav_name' => array('type' => 'varchar','precision' => '64'),
+			'list_etag' => array('type' => 'int','precision' => '4','nullable' => False,'default' => '0'),
+			'list_modified' => array('type' => 'timestamp','nullable' => False,'default' => 'current_timestamp'),
+			'list_modifier' => array('type' => 'int','precision' => '4')
 		),
 		'pk' => array('list_id'),
 		'fk' => array(),
 		'ix' => array(),
-		'uc' => array(array('list_owner','list_name'))
+		'uc' => array('list_uid','list_carddav_name',array('list_owner','list_name'))
 	),
 	'egw_addressbook2list' => array(
 		'fd' => array(
diff --git a/phpgwapi/setup/tables_update.inc.php b/phpgwapi/setup/tables_update.inc.php
index 1ca0c51f59..0e3d6a051b 100644
--- a/phpgwapi/setup/tables_update.inc.php
+++ b/phpgwapi/setup/tables_update.inc.php
@@ -336,3 +336,48 @@ function phpgwapi_upgrade1_9_012()
 
 	return $GLOBALS['setup_info']['phpgwapi']['currentver'] = '1.9.013';
 }
+
+/**
+ * Adding neccessary information to return list to (Apple) CardDAV clients as "Group"
+ */
+function phpgwapi_upgrade1_9_013()
+{
+	$GLOBALS['egw_setup']->oProc->AddColumn('egw_addressbook_lists','list_uid',array(
+		'type' => 'varchar',
+		'precision' => '255'
+	));
+	$GLOBALS['egw_setup']->oProc->AddColumn('egw_addressbook_lists','list_carddav_name',array(
+		'type' => 'varchar',
+		'precision' => '64'
+	));
+	$GLOBALS['egw_setup']->oProc->AddColumn('egw_addressbook_lists','list_etag',array(
+		'type' => 'int',
+		'precision' => '4',
+		'nullable' => False,
+		'default' => '0'
+	));
+	$GLOBALS['egw_setup']->oProc->AddColumn('egw_addressbook_lists','list_modified',array(
+		'type' => 'timestamp',
+		'nullable' => False,
+		'default' => 'current_timestamp'
+	));
+	$GLOBALS['egw_setup']->oProc->CreateIndex('egw_addressbook_lists','list_modified');
+	$GLOBALS['egw_setup']->oProc->AddColumn('egw_addressbook_lists','list_modifier',array(
+		'type' => 'int',
+		'precision' => '4'
+	));
+	$install_id = $GLOBALS['egw_setup']->db->select('egw_config','config_value',array(
+		'config_app' => 'phpgwapi',
+		'config_name' => 'install_id',
+	),__LINE__,__FILE__)->fetchColumn();
+	// setting values for existing lists
+	$GLOBALS['egw_setup']->db->query('UPDATE egw_addressbook_lists SET '.
+		'list_uid='.$GLOBALS['egw_setup']->db->concat("'addressbook-lists-'",'list_id',"'-$install_id'").
+		',list_carddav_name='.$GLOBALS['egw_setup']->db->concat("'addressbook-lists-'",'list_id',"'-$install_id.vcf'"),
+		__LINE__,__FILE__);
+	$GLOBALS['egw_setup']->oProc->CreateIndex('egw_addressbook_lists','list_uid',true);
+	$GLOBALS['egw_setup']->oProc->CreateIndex('egw_addressbook_lists','list_carddav_name',true);
+
+	return $GLOBALS['setup_info']['phpgwapi']['currentver'] = '1.9.014';
+}
+