diff --git a/pkgs/rootfs/mkrootfs.nix b/pkgs/rootfs/mkrootfs.nix
index bdc0ba1..4818478 100644
--- a/pkgs/rootfs/mkrootfs.nix
+++ b/pkgs/rootfs/mkrootfs.nix
@@ -12,7 +12,9 @@ runCommand "patos-rootfs"
 {
   inherit version;
 
-  buildInputs = with pkgs;[
+  nativeBuildInputs = with pkgs; [
+    stdenv.cc
+    patchelf
     glibc
     binutils
   ];
@@ -222,7 +224,7 @@ find $out -type f -executable -exec patchelf --set-interpreter /lib/ld-linux-x86
 patchelf --remove-rpath $out/usr/lib/ld-linux-x86-64.so.2
 
 # strip binaries
-find $out -type f -executable -exec strip {} \;
+find $out -type f -executable -exec $STRIP {} \;
 find $out -type d -exec chmod 755 {} \;
 
 # install kernel modules