Include letsencrypt auth helper.
diff --git a/nginx/files/_ssl.conf b/nginx/files/_ssl.conf
index 4cc0938..d83beac 100644
--- a/nginx/files/_ssl.conf
+++ b/nginx/files/_ssl.conf
@@ -11,6 +11,7 @@
   ssl_certificate         /etc/letsencrypt/live/{{ site.host.name }}/fullchain.pem;
   ssl_certificate_key     /etc/letsencrypt/live/{{ site.host.name }}/privkey.pem;
   ssl_trusted_certificate /etc/letsencrypt/live/{{ site.host.name }}/fullchain.pem;
+  {%- include "nginx/files/_letsencrypt.conf" %}
   {%- endif %}
   {%- set ssl_mode = site.ssl.get('mode', 'secure') %}
   {%- include "nginx/files/_ssl_"+ssl_mode+".conf" %}