diff --git a/addressbook/inc/class.addressbook_ui.inc.php b/addressbook/inc/class.addressbook_ui.inc.php
index cc31f8c811..8a1ef6caa4 100644
--- a/addressbook/inc/class.addressbook_ui.inc.php
+++ b/addressbook/inc/class.addressbook_ui.inc.php
@@ -634,6 +634,7 @@ class addressbook_ui extends addressbook_bo
 		{
 			$actions['undelete'] = array(
 				'caption' => 'Un-delete',
+				'icon' => 'revert',
 				'group' => $group,
 				'disableClass' => 'rowNoEdit',
 			);
diff --git a/calendar/inc/class.calendar_uilist.inc.php b/calendar/inc/class.calendar_uilist.inc.php
index 66b4ed9048..e6df03404c 100644
--- a/calendar/inc/class.calendar_uilist.inc.php
+++ b/calendar/inc/class.calendar_uilist.inc.php
@@ -842,6 +842,7 @@ class calendar_uilist extends calendar_ui
 		{
 			$actions['undelete'] = array(
 				'caption' => 'Un-delete',
+				'icon' => 'revert',
 				'hint' => 'Recover this event',
 				'group' => $group,
 				'enabled' => 'javaScript:nm_enableClass',