diff --git a/alertad.conf.tmpl b/alertad.conf.tmpl
index 457e44e..fcccdfd 100644
--- a/alertad.conf.tmpl
+++ b/alertad.conf.tmpl
@@ -65,6 +65,5 @@ SMTP_HOST = "{{ env "SMTP_HOST" }}"
 SMTP_PASSWORD = "{{ secret "smtp_password" }}"
 SMTP_PORT = "{{ env "SMTP_PORT" }}"
 SMTP_STARTTLS = {{ env "SMTP_STARTTLS" }}
-SMTP_USERNAME = "{{ env "SMTP_USERNAME" }}"
 
 CORS_ORIGINS = ["*"]