diff --git a/htdocs/core/class/notify.class.php b/htdocs/core/class/notify.class.php
index 45022a707ba..7a9dcdb38fe 100644
--- a/htdocs/core/class/notify.class.php
+++ b/htdocs/core/class/notify.class.php
@@ -952,6 +952,9 @@ class Notify
 							$arraydefaultmessage = $formmail->getEMailTemplate($this->db, $object_type.'_send', $user, $outputlangs, 0, 1, $labeltouse);
 						}
 						if (!empty($labeltouse) && is_object($arraydefaultmessage) && $arraydefaultmessage->id > 0) {
+							if (method_exists($object, 'fetch_thirdparty') && empty($object->thirdparty)) {
+								$object->fetch_thirdparty();
+							}
 							$substitutionarray = getCommonSubstitutionArray($outputlangs, 0, null, $object);
 							complete_substitutions_array($substitutionarray, $outputlangs, $object);
 							$subject = make_substitutions($arraydefaultmessage->topic, $substitutionarray, $outputlangs);