diff --git a/inc/ticket.class.php b/inc/ticket.class.php
index 17adb726d34..cc2ff580314 100644
--- a/inc/ticket.class.php
+++ b/inc/ticket.class.php
@@ -6439,9 +6439,26 @@ function showTimeline($rand) {
          echo "<div class='h_info'>";
          echo "<div class='h_date'>".Html::convDateTime($this->fields['date'])."</div>";
          echo "<div class='h_user'>";
-         if (isset($item_i['users_id_recipient'])
-             && ($item_i['users_id_recipient'] != 0)) {
-            $user->getFromDB($this->fields['users_id_recipient']);
+         $dem = '0';
+         foreach ($DB->request("glpi_tickets_users",
+                               "`tickets_id` = ".$this->fields['id']." AND `type` = 1") AS $req) {
+            $dem = $req['users_id'];
+         }
+         if ((!isset($item_i['users_id_recipient'])
+              || ($item_i['users_id_recipient'] == 0))
+             && ($dem == 0)) {
+            _e("Requester");
+         }
+         else {
+            if (isset($item_i['users_id_recipient'])
+                && ($item_i['users_id_recipient'] != 0)) {
+               $user->getFromDB($this->fields['users_id_recipient']);
+            } else if ($dem > 0) {
+               $requester = new User();
+               if ($requester->getFromDB($dem)) {
+                  $user = $requester;
+               }
+            }
 
             echo "<div class='tooltip_picture_border'>";
             $picture = "";
@@ -6453,8 +6470,6 @@ function showTimeline($rand) {
             echo "</div>";
 
             echo $user->getLink();
-         } else {
-            _e("Requester");
          }
 
          echo "</div>"; // h_user