diff --git a/libntfs-3g/attrib.c b/libntfs-3g/attrib.c
index c7bbf333..123c9a91 100644
--- a/libntfs-3g/attrib.c
+++ b/libntfs-3g/attrib.c
@@ -1997,7 +1997,7 @@ retry:
 				if (compressed) {
 					written = ntfs_compressed_pwrite(na,
 						rl, wpos, ofs, to_write,
-						rounding, b, compressed_part,
+						rounding, cb, compressed_part,
 						&update_from);
 				} else {
 					written = ntfs_pwrite(vol->dev, wpos,