diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53fffad..f5e3865 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,7 +16,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Fixed
 
 - Prevent an escalation when a ticket is updated
-- Fix climbing with history
+- Fix escalating with history
+- Fix task not added when escalating with history
 
 ### Changed
 
diff --git a/inc/ticket.class.php b/inc/ticket.class.php
index 06344be..453f65d 100644
--- a/inc/ticket.class.php
+++ b/inc/ticket.class.php
@@ -516,7 +516,7 @@ public static function climb_group($tickets_id, $groups_id)
             $updates_ticket = new Ticket();
             $updates_ticket->update($ticket_details + [
                 '_actors' => PluginEscaladeTicket::getTicketFieldsWithActors($tickets_id, $groups_id),
-                '_plugin_escalade_no_history' => true, // Prevent a duplicated task to be added
+                '_plugin_escalade_no_history' => false,
                 'actortype' => CommonITILActor::ASSIGN,
                 'groups_id' => $groups_id,
                 '_form_object' => $_form_object,