Use certificate with chain
diff --git a/nginx/files/_ssl.conf b/nginx/files/_ssl.conf
index 7c7e6a9..72fde47 100644
--- a/nginx/files/_ssl.conf
+++ b/nginx/files/_ssl.conf
@@ -2,7 +2,7 @@
   {%- if site.get('ssl', {'enabled': False}).get('enabled', False) %}
   ssi on;
   ssl on;
-  ssl_certificate /etc/ssl/certs/{{ site.host.name }}.crt;
+  ssl_certificate /etc/ssl/certs/{{ site.host.name }}-with-chain.crt;
   ssl_certificate_key /etc/ssl/private/{{ site.host.name }}.key;
   {%- set ssl_mode = site.ssl.get('mode', 'secure') %}
   {%- include "nginx/files/_ssl_"+ssl_mode+".conf" %}