diff --git a/maintainers/scripts/nix-call-package b/maintainers/scripts/nix-call-package
new file mode 100755
index 000000000000..76f09e9ddeb8
--- /dev/null
+++ b/maintainers/scripts/nix-call-package
@@ -0,0 +1,5 @@
+#! /bin/sh
+
+echo "let pkgs = import /etc/nixos/nixpkgs$2 {}; x = pkgs.callPackage $1 { $3 }; in ${4:-x}" |
+nix-instantiate --show-trace - |
+xargs nix-store -r -K