diff --git a/docs/nginx/monolith-sample.conf b/docs/nginx/monolith-sample.conf
index 9ee5e1ac..350e8348 100644
--- a/docs/nginx/monolith-sample.conf
+++ b/docs/nginx/monolith-sample.conf
@@ -1,5 +1,6 @@
 server {
-    listen 443 ssl;
+    listen 443 ssl; # IPv4
+    listen [::]:443; # IPv6
     server_name my.hostname.com;
 
     ssl_certificate /path/to/fullchain.pem;
diff --git a/docs/nginx/polylith-sample.conf b/docs/nginx/polylith-sample.conf
index ab346184..d0d3c98d 100644
--- a/docs/nginx/polylith-sample.conf
+++ b/docs/nginx/polylith-sample.conf
@@ -1,5 +1,6 @@
 server {
-    listen 443 ssl;
+    listen 443 ssl; # IPv4
+    listen [::]:443; # IPv6
     server_name my.hostname.com;
 
     ssl_certificate /path/to/fullchain.pem;