diff --git a/bookstack.subdomain.conf.sample b/bookstack.subdomain.conf.sample
index aecaacd..b63186a 100644
--- a/bookstack.subdomain.conf.sample
+++ b/bookstack.subdomain.conf.sample
@@ -12,6 +12,12 @@ server {
 
     client_max_body_size 0;
 
+    # enable for ldap auth, fill in ldap details in ldap.conf
+    #include /config/nginx/ldap.conf;
+
+    # enable for Authelia
+    #include /config/nginx/authelia-server.conf;
+
     location / {
         #enable the next two lines for http auth
         #auth_basic "Restricted";