diff --git a/modules/nixos/services/postgresql/default.nix b/modules/nixos/services/postgresql/default.nix
index dc84a70..c9ff489 100755
--- a/modules/nixos/services/postgresql/default.nix
+++ b/modules/nixos/services/postgresql/default.nix
@@ -1,4 +1,4 @@
-{ flake, ... }:
+{ flake, lib, ... }:
 let
   inherit (flake.config.machines.devices)
     ceres
@@ -53,9 +53,20 @@ in
     instances.syncthing.name
   ];
 
+  systemd.services = {
+    postgresqlBackup-firefly-iii = {
+      serviceConfig = {
+        Group = lib.mkForce instances.syncthing.name;
+      };
+    };
+    postgresqlBackup-mastodon = {
+      serviceConfig = {
+        Group = lib.mkForce instances.syncthing.name;
+      };
+    };
+  };
+
   system.activationScripts.postgresCommands = ''
-    if [ ! -d "${service.paths.path0}/15" ]; then
-      chown -R ${service.name}:${service.name} ${service.paths.path0}
-    fi
+    chown -R ${service.name}:${service.name} ${service.paths.path0}
   '';
 }