diff --git a/installer/default.nix b/installer/default.nix
index dfa2ab38eeba..02c1c514e6ce 100644
--- a/installer/default.nix
+++ b/installer/default.nix
@@ -21,12 +21,10 @@ in
     name = "nixos-install";
     src = ./nixos-install.sh;
 
-    inherit (pkgs) perl;
+    inherit (pkgs) perl pathsFromGraph;
     inherit nix;
     nixpkgsURL = config.installer.nixpkgsURL;
 
-    pathsFromGraph = "${pkgs.path}/build-support/kernel/paths-from-graph.pl";
-
     nixClosure = pkgs.runCommand "closure"
       {exportReferencesGraph = ["refs" nix];}
       "cp refs $out";