@@ -1530,7 +1530,7 @@ def main():

     optparser.add_option(      "--encoding", dest="encoding", metavar="ENCODING", help="Override autodetected terminal and filesystem encoding (character set). Autodetected: %s" % preferred_encoding)

     optparser.add_option(      "--verbatim", dest="urlencoding_mode", action="store_const", const="verbatim", help="Use the S3 name as given on the command line. No pre-processing, encoding, etc. Use with caution!")

-    optparser.add_option(      "--disable-multipart", dest="enable_multipart", action="store_false", help="Disable multipart upload on files bigger than --multipart-chunk-size")

+    optparser.add_option(      "--disable-multipart", dest="enable_multipart", action="store_false", help="Disable multipart upload on files bigger than --multipart-chunk-size-mb")

     optparser.add_option(      "--multipart-chunk-size-mb", dest="multipart_chunk_size_mb", type="int", action="store", metavar="SIZE", help="Size of each chunk of a multipart upload. Files bigger than SIZE are automatically uploaded as multithreaded-multipart, smaller files are uploaded using the traditional method. SIZE is in Mega-Bytes, default chunk size is %defaultMB, minimum allowed chunk size is 5MB, maximum is 5GB.")

     optparser.add_option(      "--list-md5", dest="list_md5", action="store_true", help="Include MD5 sums in bucket listings (only for 'ls' command).")