diff --git a/pkgs/tools/filesystems/mhddfs/default.nix b/pkgs/tools/filesystems/mhddfs/default.nix
index 697256982bbf..15bb390e3648 100644
--- a/pkgs/tools/filesystems/mhddfs/default.nix
+++ b/pkgs/tools/filesystems/mhddfs/default.nix
@@ -16,6 +16,11 @@ stdenv.mkDerivation rec {
     ./fix-format-security-error.patch
   ];
 
+  postPatch = ''
+    substituteInPlace src/main.c --replace "attr/xattr.h" "sys/xattr.h"
+    substituteInPlace src/tools.c --replace "attr/xattr.h" "sys/xattr.h"
+  '';
+
   installPhase = ''
     mkdir -p $out/bin
     cp mhddfs $out/bin/