diff --git a/sbin/entrypoint.sh b/sbin/entrypoint.sh
index 50bc513..1267996 100755
--- a/sbin/entrypoint.sh
+++ b/sbin/entrypoint.sh
@@ -98,6 +98,7 @@ setup_app_ini() {
     crudini --set "$app_ini" mailer USER "${SMTP_USER}"
     crudini --set "$app_ini" mailer PASSWD "${SMTP_PASSWD}"
     crudini --set "$app_ini" mailer MAILER_TYPE "${SMTP_MAILER_TYPE}"
+    crudini --set "$app_ini" mailer IS_TLS_ENABLED "${SMTP_TLS_ENABLED}"
 
     crudini --set "$app_ini" markup.restructuredtext ENABLED "true"
     crudini --set "$app_ini" markup.restructuredtext FILE_EXTENSIONS ".rst"