diff --git a/htdocs/comm/action/index.php b/htdocs/comm/action/index.php
index 1af04366651..f75913bb144 100644
--- a/htdocs/comm/action/index.php
+++ b/htdocs/comm/action/index.php
@@ -1065,6 +1065,7 @@ if (count($listofextcals))
                     if(!empty($userId))
                     {
                         $event->userassigned[$userId] = $userId;
+                        $event->percentage = -1;
                     }
                     else
                     {