diff --git a/mail_usability/static/src/js/many2many_tags_email.js b/mail_usability/static/src/js/many2many_tags_email.js
index a30018c..3a124d0 100644
--- a/mail_usability/static/src/js/many2many_tags_email.js
+++ b/mail_usability/static/src/js/many2many_tags_email.js
@@ -17,6 +17,7 @@ instance.web.form.FieldMany2ManyTagsEmail = instance.web.form.FieldMany2ManyTags
         this.last_processed_value = [];
 
         this.on("change:value", this, this.on_change_value_check);
+        // Restore pop-up when trying to send to a partner without email
         this.on_change_value_check();
         this._super.apply(this, arguments);
     },