diff --git a/docker/nginx.tmpl b/docker/nginx.tmpl
index 05a5541..1f1ed8e 100644
--- a/docker/nginx.tmpl
+++ b/docker/nginx.tmpl
@@ -8,6 +8,7 @@ http {
     }
     server {
         listen ${LISTEN_PORT};
+        listen [::]:${LISTEN_PORT};        
         root /usr/share/nginx/html;
         location /api {
             proxy_pass http://otrecorder/api/;