diff --git a/app/tasks.py b/app/tasks.py
index 9dac234..a5e2a7e 100644
--- a/app/tasks.py
+++ b/app/tasks.py
@@ -28,7 +28,7 @@ def send_comment_notification(commenter_email, subject, template, template_data)
         html = template_env.get_template(template).render(data=template_data)
         sender = settings.EMAIL_NOTIFICATIONS.SENDER
         subject = settings.EMAIL_NOTIFICATIONS.PREFIX + subject
-        send_email(sender, recipient=commenter_email, subject=subject, html=html)
+        send_email(sender, recipients=[commenter_email], subject=subject, html=html)
         logging.info('{} mail sent to {}'.format(template, commenter_email))
 
     @queue.task(autoretry_for=(Exception,), max_retries=5, default_retry_delay=RETRY_DELAY)