diff --git a/pills/08/autotools-nix.txt b/pills/08/autotools-nix.txt
index 43264e1..ba61142 100644
--- a/pills/08/autotools-nix.txt
+++ b/pills/08/autotools-nix.txt
@@ -1,11 +1,11 @@
 pkgs: attrs:
-  with pkgs;
   let defaultAttrs = {
-    builder = "${bash}/bin/bash";
+    builder = "${pkgs.bash}/bin/bash";
     args = [ ./builder.sh ];
-    baseInputs = [ gnutar gzip gnumake gcc coreutils gawk gnused gnugrep binutils.bintools ];
+    baseInputs = with pkgs; [ gnutar gzip gnumake gcc coreutils gawk gnused gnugrep binutils.bintools];
     buildInputs = [];
     system = builtins.currentSystem;
   };
   in
-  derivation (defaultAttrs // attrs)
+  pkgs.stdenv.mkDerivation (defaultAttrs // attrs)
+