diff --git a/flake.nix b/flake.nix
index aa28b820..df218a3e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -775,7 +775,7 @@
             )
           ) self.nixosConfigurations
           // nixos.lib.filterAttrs (name: attr:
-            (lib.match ".+-tftproot" name != null && lib.isDerivation attr)
+            (builtins.match ".+-tftproot" name != null && lib.isDerivation attr)
           ) self.packages.aarch64-linux
         );
     };