diff --git a/htdocs/admin/mailing.php b/htdocs/admin/mailing.php
index 54203dd7ae1..ea5c9b7bbb4 100644
--- a/htdocs/admin/mailing.php
+++ b/htdocs/admin/mailing.php
@@ -105,6 +105,24 @@ print_fiche_titre($langs->trans("MailingSetup"),$linkback,'setup');
 
 dol_htmloutput_mesg($mesg);
 
+
+if (! empty($conf->use_javascript_ajax))
+{
+	print "\n".'<script type="text/javascript">';
+	print '$(document).ready(function () {
+            $("#generate_token").click(function() {
+            	$.get( "'.DOL_URL_ROOT.'/core/ajax/security.php", {
+            		action: \'getrandompassword\',
+            		generic: true
+				},
+				function(token) {
+					$("#MAILING_EMAIL_UNSUBSCRIBE_KEY").val(token);
+				});
+            });
+    });';
+	print '</script>';
+}
+
 print '<br>';
 print '<form method="post" action="'.$_SERVER["PHP_SELF"].'">';
 print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
@@ -155,7 +173,9 @@ print '</td></tr>';
 $var=!$var;
 print '<tr '.$bc[$var].'><td>';
 print $langs->trans("ActivateCheckReadKey").'</td><td>';
-print '<input size="32" type="text" name="MAILING_EMAIL_UNSUBSCRIBE_KEY" '.$readonly.' value="'.$conf->global->MAILING_EMAIL_UNSUBSCRIBE_KEY.'">';
+print '<input size="32" type="text" name="MAILING_EMAIL_UNSUBSCRIBE_KEY" id="MAILING_EMAIL_UNSUBSCRIBE_KEY" '.$readonly.' value="'.$conf->global->MAILING_EMAIL_UNSUBSCRIBE_KEY.'">';
+if (! empty($conf->use_javascript_ajax))
+	print '&nbsp;'.img_picto($langs->trans('Generate'), 'refresh', 'id="generate_token" class="linkobject"');
 print '</td></tr>';
 
 print '</table>';