diff --git a/flake.nix b/flake.nix
index 7873367..f0e6e83 100644
--- a/flake.nix
+++ b/flake.nix
@@ -84,7 +84,7 @@
 
         config = lib.mkIf config.photocatalog.enable {
           environment.systemPackages = [ self.packages.${pkgs.system}.photocatalog ];
-          systemd.services = builtins.attrValues config.photocatalog.syncs (sync:
+          systemd.services = lib.genAttrs (lib.attrValues config.photocatalog.syncs) (sync:
             {
               ${sync.name} = {
                 name = "photocatalog_${sync.name}";