diff --git a/nixos/lib/make-squashfs.nix b/nixos/lib/make-squashfs.nix
index e66c0ae8f66..9d47a3222cc 100644
--- a/nixos/lib/make-squashfs.nix
+++ b/nixos/lib/make-squashfs.nix
@@ -8,7 +8,7 @@
 stdenv.mkDerivation {
   name = "squashfs.img";
 
-  buildInputs = [perl squashfsTools];
+  nativeBuildInputs = [perl squashfsTools];
 
   # For obtaining the closure of `storeContents'.
   exportReferencesGraph =