diff --git a/flake.nix b/flake.nix
index 177c0c5..82c95ea 100644
--- a/flake.nix
+++ b/flake.nix
@@ -102,7 +102,7 @@
 
         postgres = {
           socket = "/run/postgresql";
-          dataDir = "${service_configs.services_dir}/sql";
+          dataDir = services_dir + "/sql";
         };
 
         immich = {