diff --git a/htdocs/eventorganization/conferenceorbooth_list.php b/htdocs/eventorganization/conferenceorbooth_list.php
index feb202de663..cbf0e91f7fa 100644
--- a/htdocs/eventorganization/conferenceorbooth_list.php
+++ b/htdocs/eventorganization/conferenceorbooth_list.php
@@ -368,7 +368,7 @@ if ($projectid > 0) {
 	$linkregister = $dolibarr_main_url_root.'/public/project/index.php?id='.$encodedid;
 	$encodedsecurekey = dol_encode($conf->global->EVENTORGANIZATION_SECUREKEY.$encodedid, $dolibarr_main_instance_unique_id);
 	$linkregister .= '&securekey='.urlencode($encodedsecurekey);
-	print '<a href="'.$linkregister.'">'.$linkregister.'</a>';
+	print '<a target="_blank" href="'.$linkregister.'">'.$linkregister.'</a>';
 	print '</td></tr>';
 
 	// Other attributes
diff --git a/htdocs/public/eventorganization/attendee_subscription.php b/htdocs/public/eventorganization/attendee_subscription.php
index 727f2c64d6f..22b6955c6f5 100644
--- a/htdocs/public/eventorganization/attendee_subscription.php
+++ b/htdocs/public/eventorganization/attendee_subscription.php
@@ -376,8 +376,6 @@ if (empty($reshook) && $action == 'add') {
 			$substitutionarray = getCommonSubstitutionArray($outputlangs, 0, null, $thirdparty);
 			complete_substitutions_array($substitutionarray, $outputlangs, $object);
 
-			$substitutionarray['ThisIsContentOfYourOrganizationEventEventSubscriptionWasReceived'] = 'Vous êtes bien enregistré.';
-
 			$subjecttosend = make_substitutions($subject, $substitutionarray, $outputlangs);
 			$texttosend = make_substitutions($msg, $substitutionarray, $outputlangs);