diff --git a/addressbook/inc/class.addressbook_export_contacts_csv.inc.php b/addressbook/inc/class.addressbook_export_contacts_csv.inc.php
index 275aa4a5be..e675ad43b2 100644
--- a/addressbook/inc/class.addressbook_export_contacts_csv.inc.php
+++ b/addressbook/inc/class.addressbook_export_contacts_csv.inc.php
@@ -100,8 +100,8 @@ class addressbook_export_contacts_csv implements importexport_iface_export_plugi
 					}
 					continue;
 				}
-				// Custom fields & listed are not filtered with contact_ prefix
-				if(strpos($field, '#') !== 0 && !in_array($field, array('tid')))
+				// Custom fields & listed exceptions are not filtered with contact_ prefix
+				if(strpos($field, '#') !== 0 && !in_array($field, array('tid','owner')))
 				{
 					$field = 'contact_'.$field;
 				}
@@ -119,6 +119,10 @@ class addressbook_export_contacts_csv implements importexport_iface_export_plugi
 		{
 			$selection = explode(',',$options['selection']);
 		}
+		if(!is_array($selection))
+		{
+			$selection = array();
+		}
 		$GLOBALS['egw_info']['flags']['currentapp'] = $old_app;
 
 		if(bo_merge::hasExportLimit($export_limit) && !$limit_exception) {