diff --git a/CHANGELOG.md b/CHANGELOG.md
index 79ebc995..9d157249 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Fix task not added when escalating with history
 - Fix escalating with history
 - Fix ```status``` after escalation
+- Prevent anonymous user to be deleted during escalation
 
 ## [2.9.8] - 2024-07-15
 
diff --git a/inc/ticket.class.php b/inc/ticket.class.php
index 37d2bcbd..7247565b 100644
--- a/inc/ticket.class.php
+++ b/inc/ticket.class.php
@@ -1055,6 +1055,7 @@ public static function getTicketFieldsWithActors($tickets_id, $group_id)
                     $actors_input[] = [
                         'itemtype' => $itemtype,
                         'items_id' => $val[strtolower($itemtype . 's_id')],
+                        'alternative_email' => $val['alternative_email'] ?? '',
                     ];
                 }
                 $actortype = $actor_types[$type] ?? '';