diff --git a/htdocs/comm/action/peruser.php b/htdocs/comm/action/peruser.php
index 8cb88402a57..e80e21e8e01 100644
--- a/htdocs/comm/action/peruser.php
+++ b/htdocs/comm/action/peruser.php
@@ -1350,6 +1350,7 @@ if (count($listofextcals)) {
 					if (!empty($userId) && $userId > 0) {
 						$event->userassigned[$userId] = [
 							'id' => $userId,
+							'transparency' => 1,
 						];
 						$event->percentage = -1;
 					}