diff --git a/mail_recovery/static/src/js/mail_recovery.js b/mail_recovery/static/src/js/mail_recovery.js
index 0a4b571..01a51ab 100644
--- a/mail_recovery/static/src/js/mail_recovery.js
+++ b/mail_recovery/static/src/js/mail_recovery.js
@@ -1,4 +1,5 @@
 odoo.define("mail_recovery", function(require) {
+    "use strict";
     var composer = require("mail.composer");
 
     composer.BasicComposer.include({