1 files changed, 4 insertions, 9 deletions
diff --git a/pkgs/build-support/binary-cache/default.nix b/pkgs/build-support/binary-cache/default.nix
index 27f9ad96289..8c610c51227 100644
--- a/pkgs/build-support/binary-cache/default.nix
+++ b/pkgs/build-support/binary-cache/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPackages }:
+{ lib, stdenv, coreutils, jq, python3, nix, xz }:
 
 # This function is for creating a flat-file binary cache, i.e. the kind created by
 # nix copy --to file:///some/path and usable as a substituter (with the file:// prefix).
@@ -19,15 +19,10 @@ stdenv.mkDerivation {
 
   preferLocalBuild = true;
 
-  PATH = lib.makeBinPath (with buildPackages; [ coreutils jq python3 nix xz ]);
+  nativeBuildInputs = [ coreutils jq python3 nix xz ];
 
-  builder = builtins.toFile "builder" ''
-    . .attrs.sh
-
-    export out=''${outputs[out]}
-
-    mkdir $out
-    mkdir $out/nar
+  buildCommand = ''
+    mkdir -p $out/nar
 
     python ${./make-binary-cache.py}