diff --git a/phpgwapi/inc/class.groupdav.inc.php b/phpgwapi/inc/class.groupdav.inc.php
index 98fd7fae52..ed67d9a765 100644
--- a/phpgwapi/inc/class.groupdav.inc.php
+++ b/phpgwapi/inc/class.groupdav.inc.php
@@ -141,6 +141,7 @@ class groupdav extends HTTP_WebDAV_Server
 				$this->cnrnd = true;
 				break;
 			case 'davkit':	// iCal app in OS X 10.6 created wrong request, if full url given
+			case 'coredav':	// iCal app in OS X 10.7
 				$this->client_require_href_as_url = false;
 				$this->cnrnd = true;
 				break;
diff --git a/phpgwapi/inc/class.groupdav_handler.inc.php b/phpgwapi/inc/class.groupdav_handler.inc.php
index 5342f1f39f..39d8ec8286 100644
--- a/phpgwapi/inc/class.groupdav_handler.inc.php
+++ b/phpgwapi/inc/class.groupdav_handler.inc.php
@@ -344,9 +344,10 @@ abstract class groupdav_handler
 			$user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
 			foreach(array(
 				'iphone'            => 'iphone',	// Apple iPhone iCal
-				'davkit'            => 'davkit',	// Apple iCal
+				'davkit'            => 'davkit',	// Apple iCal 10.6
+				'coredav'           => 'coredav',	// Apple iCal 10.7
 				'dataaccess'        => 'dataaccess',	// Apple addressbook iPhone
-				'cfnetwork'         => 'cfnetwork', // Apple Addressbook
+				'cfnetwork'         => 'cfnetwork',	// Apple Addressbook 10.6/7
 				'bionicmessage.net' => 'funambol',	// funambol GroupDAV connector from bionicmessage.net
 				'zideone'           => 'zideone',	// zideone outlook plugin
 				'lightning'         => 'lightning',	// Lighting (SOGo connector for addressbook)