diff --git a/modules/installer/tools/tools.nix b/modules/installer/tools/tools.nix
index 2f91ef2c629..37b7589f477 100644
--- a/modules/installer/tools/tools.nix
+++ b/modules/installer/tools/tools.nix
@@ -44,12 +44,10 @@ let
     name = "nixos-install";
     src = ./nixos-install.sh;
 
-    inherit (pkgs) perl;
+    inherit (pkgs) perl pathsFromGraph;
     nix = config.environment.nix;
     nixpkgsURL = config.installer.nixpkgsURL;
 
-    pathsFromGraph = "${pkgs.path}/build-support/kernel/paths-from-graph.pl";
-
     nixClosure = pkgs.runCommand "closure"
       {exportReferencesGraph = ["refs" config.environment.nix];}
       "cp refs $out";