diff --git a/pastila/srv.nix b/pastila/srv.nix
index 640b713..5916bce 100644
--- a/pastila/srv.nix
+++ b/pastila/srv.nix
@@ -1,8 +1,8 @@
 { config, lib, pkgs, ... }:
 
 let
-  up_dir = /srv/up;
-  isomorphisme_dir = /srv/isomorphis.me;
+  up_dir = "/srv/up";
+  isomorphisme_dir = "/srv/isomorphis.me";
 in
 {
   services.nginx.enable = true;
@@ -16,6 +16,8 @@ in
     group = "nginx";
     # Unsure why this is broken, but couldn't make things work without
     # creating the directory by hand.
+    # TODO: this might have been because I used up_dir = /srv/up before;
+    # maybe this would work now?
     # createHome = true;
     # homeMode = "750";
   };