diff --git a/docker/OpenResty-Orthanc-Keycloak/config/nginx.conf b/docker/OpenResty-Orthanc-Keycloak/config/nginx.conf
index ea4f5198e..363117de9 100644
--- a/docker/OpenResty-Orthanc-Keycloak/config/nginx.conf
+++ b/docker/OpenResty-Orthanc-Keycloak/config/nginx.conf
@@ -47,12 +47,13 @@ http {
 
     # Nginx `listener` block
     server {
-        listen      80 default_server;
+        listen [::]:80 default_server;
+        listen 80;
         # listen      443 ssl;
         access_log  /var/logs/nginx/mydomain.access.log;
 
         # Domain to protect
-        server_name localhost 127.0.0.1; # mydomain.com;
+        server_name 127.0.0.1 localhost; # mydomain.com;
         proxy_intercept_errors off;
         # ssl_certificate /etc/letsencrypt/live/mydomain.co.uk/fullchain.pem;
         # ssl_certificate_key /etc/letsencrypt/live/mydomain.co.uk/privkey.pem;