diff --git a/nix/module.nix b/nix/module.nix
index b934d60..d939861 100644
--- a/nix/module.nix
+++ b/nix/module.nix
@@ -158,7 +158,7 @@ in
               proxyPass = "http://localhost:${toString cfg.webAppPort}";
             };
             "/previews/" = {
-              root = "/var/www/archtika-websites/previews/";
+              alias = "/var/www/archtika-websites/previews/";
               index = "index.html";
               tryFiles = "$uri $uri/ $uri.html =404";
             };