diff --git a/cinder/backup/chunkeddriver.py b/cinder/backup/chunkeddriver.py
index 6ca786b5088..24954465c05 100644
--- a/cinder/backup/chunkeddriver.py
+++ b/cinder/backup/chunkeddriver.py
@@ -53,7 +53,7 @@ backup_opts = [
                choices=['none', 'off', 'no',
                         'zlib', 'gzip',
                         'bz2', 'bzip2'],
-               help='Compression algorithm (None to disable)'),
+               help='Compression algorithm ("none" to disable)'),
 ]
 
 CONF = cfg.CONF
diff --git a/doc/source/admin/blockstorage-volume-backups.rst b/doc/source/admin/blockstorage-volume-backups.rst
index 7c778dc487a..00e49837bfb 100644
--- a/doc/source/admin/blockstorage-volume-backups.rst
+++ b/doc/source/admin/blockstorage-volume-backups.rst
@@ -133,7 +133,7 @@ appropriate for your environment:
    backup_sha_block_size_bytes = 32768
    backup_file_size = 1999994880
 
-The option ``backup_compression_algorithm`` can be set to ``bz2`` or ``None``.
+The option ``backup_compression_algorithm`` can be set to ``bz2`` or ``none``.
 The latter can be a useful setting when the server providing the share for the
 backup repository itself performs deduplication or compression on the backup
 data.