diff --git a/ansible/templates/alerta.conf b/ansible/templates/alerta.conf
index 801d2d7..7dd7ea0 100644
--- a/ansible/templates/alerta.conf
+++ b/ansible/templates/alerta.conf
@@ -20,4 +20,4 @@ smtp_host = {{ smtp_host }}
 smtp_password = {{ smtp_passwd }}
 smtp_port = {{ smtp_port }}
 smtp_starttls = True
-smtp_username = {{ smtp_username }}
+smtp_username = {{ mail_from }}