diff --git a/nixos/modules/services/web-servers/nginx/vhost-options.nix b/nixos/modules/services/web-servers/nginx/vhost-options.nix
index a9929297a248..61eef9f7ac96 100644
--- a/nixos/modules/services/web-servers/nginx/vhost-options.nix
+++ b/nixos/modules/services/web-servers/nginx/vhost-options.nix
@@ -60,7 +60,7 @@ with lib;
         Note: This option overrides <literal>enableIPv6</literal>
       '';
       default = [];
-      example = [ "127.0.0.1" "::1" ];
+      example = [ "127.0.0.1" "[::1]" ];
     };
 
     enableACME = mkOption {