diff --git a/nixos/lib/make-iso9660-image.nix b/nixos/lib/make-iso9660-image.nix
index 6a0e0e7c635a..549530965f6e 100644
--- a/nixos/lib/make-iso9660-image.nix
+++ b/nixos/lib/make-iso9660-image.nix
@@ -48,7 +48,7 @@ assert usbBootable -> isohybridMbrImage != "";
 stdenv.mkDerivation {
   name = isoName;
   builder = ./make-iso9660-image.sh;
-  buildInputs = [ xorriso syslinux zstd libossp_uuid ];
+  nativeBuildInputs = [ xorriso syslinux zstd libossp_uuid ];
 
   inherit isoName bootable bootImage compressImage volumeID efiBootImage efiBootable isohybridMbrImage usbBootable;
 
diff --git a/nixos/lib/make-system-tarball.nix b/nixos/lib/make-system-tarball.nix
index dee91a6ce3f4..dab168f4a481 100644
--- a/nixos/lib/make-system-tarball.nix
+++ b/nixos/lib/make-system-tarball.nix
@@ -37,7 +37,7 @@ in
 stdenv.mkDerivation {
   name = "tarball";
   builder = ./make-system-tarball.sh;
-  buildInputs = extraInputs;
+  nativeBuildInputs = extraInputs;
 
   inherit fileName extraArgs extraCommands compressCommand;