diff --git a/dev/flake-module.nix b/dev/flake-module.nix
index 2831151..30ee2c0 100644
--- a/dev/flake-module.nix
+++ b/dev/flake-module.nix
@@ -1,4 +1,4 @@
-{ config, lib, inputs, withSystem, ... }:
+{ config, lib, inputs, self, withSystem, ... }:
 
 {
   imports = [
@@ -64,7 +64,7 @@
     };
 
     checks.eval-tests =
-      let tests = import ./tests/eval-tests.nix;
+      let tests = import ./tests/eval-tests.nix { flake-parts = self; };
       in tests.runTests pkgs.emptyFile // { internals = tests; };
 
   };
diff --git a/dev/tests/eval-tests.nix b/dev/tests/eval-tests.nix
index d4816fd..5a47d8e 100644
--- a/dev/tests/eval-tests.nix
+++ b/dev/tests/eval-tests.nix
@@ -1,18 +1,13 @@
 # Run with
 #
-#     nix build -f dev checks.x86_64-linux.eval-tests
+#     nix build .#checks.x86_64-linux.eval-tests
 
+{ flake-parts }:
 rec {
-  f-p = builtins.getFlake (toString ../..);
-  flake-parts = f-p;
-
-  devFlake = builtins.getFlake (toString ../.);
-  nixpkgs = devFlake.inputs.nixpkgs;
-
-  f-p-lib = f-p.lib;
-
+  nixpkgs = flake-parts.inputs.nixpkgs;
+  f-p-lib = flake-parts.lib;
   inherit (f-p-lib) mkFlake;
-  inherit (f-p.inputs.nixpkgs-lib) lib;
+  inherit (flake-parts.inputs.nixpkgs-lib) lib;
 
   pkg = system: name:
     derivation