diff --git a/mastus/website.nix b/mastus/website.nix
index 810f520..949ed25 100644
--- a/mastus/website.nix
+++ b/mastus/website.nix
@@ -40,9 +40,21 @@
       ssl_stapling_verify on;
 
       root /srv/www.gebner.org;
-      error_page 404 403 /404.html;
+      error_page 404 403 /404.cgi;
 
       access_log logs/website_access.log;
+
+      location ~ [^/]\.cgi(/|$) {
+        fastcgi_split_path_info ^(.+?\.cgi)(/.*)$;
+        if (!-f $document_root$fastcgi_script_name) {
+          return 404;
+        }
+        fastcgi_pass unix:${config.services.fcgiwrap.socketAddress};
+      }
     }
   '';
+
+  services.fcgiwrap = {
+    enable = true;
+  };
 }