diff --git a/mod/https/site-ipv4only.conf b/mod/https/site-ipv4only.conf
index 4c335e1..f5c21fb 100644
--- a/mod/https/site-ipv4only.conf
+++ b/mod/https/site-ipv4only.conf
@@ -5,6 +5,11 @@ map $http_upgrade $connection_upgrade {
 
 server {
   listen 443 ssl http2 default_server;
+
+  # we at still serve https via IPv6 for the 
+  # case that an AAAA record is set.
+  listen [::]:443 ssl http2 default_server;
+
   server_name _;
 
   include resty-server-https.conf;