diff --git a/nginx-no-https/nginx.conf.default b/nginx-no-https/nginx.conf.default
index b1f6c816..af1bcfdc 100644
--- a/nginx-no-https/nginx.conf.default
+++ b/nginx-no-https/nginx.conf.default
@@ -24,6 +24,7 @@ http {
 
     server {
       listen 80;
+      listen [::]:80;
 
       # Load Lua variables
       set_by_lua $webmail 'return os.getenv("WEBMAIL")';
diff --git a/nginx/nginx.conf.default b/nginx/nginx.conf.default
index b7ed5179..c698f86b 100644
--- a/nginx/nginx.conf.default
+++ b/nginx/nginx.conf.default
@@ -25,6 +25,8 @@ http {
     server {
       listen 80;
       listen 443 ssl;
+      listen [::]:80;
+      listen [::]:443 ssl;
 
       # TLS configuration hardened according to:
       # https://bettercrypto.org/static/applied-crypto-hardening.pdf
diff --git a/nginx/nginx.conf.fallback b/nginx/nginx.conf.fallback
index 9a63a3c9..f33554bb 100644
--- a/nginx/nginx.conf.fallback
+++ b/nginx/nginx.conf.fallback
@@ -20,6 +20,8 @@ http {
     server {
       listen 80;
       listen 443 ssl;
+      listen [::]:80;
+      listen [::]:443 ssl;
 
       # TLS configuration hardened according to:
       # https://bettercrypto.org/static/applied-crypto-hardening.pdf