diff --git a/.docker/release/files/etc/nginx/nginx.conf b/.docker/release/files/etc/nginx/nginx.conf
index ed87cb201..552b4c385 100644
--- a/.docker/release/files/etc/nginx/nginx.conf
+++ b/.docker/release/files/etc/nginx/nginx.conf
@@ -52,6 +52,7 @@ http {
 
   server {
     listen 8888;
+    listen [::]:8888;
     root /snappymail;
     index index.php;
     charset utf-8;