diff --git a/lib/net/sftp/operations/download.rb b/lib/net/sftp/operations/download.rb
index 54965ec..d4c27b6 100644
--- a/lib/net/sftp/operations/download.rb
+++ b/lib/net/sftp/operations/download.rb
@@ -218,7 +218,7 @@ def stack; @stack; end
       def progress; @progress; end
 
       # The default read size.
-      DEFAULT_READ_SIZE = 32_000
+      DEFAULT_READ_SIZE = 32_768
 
       # The number of bytes to read at a time from remote files.
       def read_size
diff --git a/lib/net/sftp/operations/upload.rb b/lib/net/sftp/operations/upload.rb
index 1e98dbf..fab1893 100644
--- a/lib/net/sftp/operations/upload.rb
+++ b/lib/net/sftp/operations/upload.rb
@@ -230,7 +230,7 @@ def progress; @progress; end
       LiveFile = Struct.new(:local, :remote, :io, :size, :handle)
 
       # The default # of bytes to read from disk at a time.
-      DEFAULT_READ_SIZE   = 32_000
+      DEFAULT_READ_SIZE   = 32_768
 
       # The number of readers to use when uploading a single file.
       SINGLE_FILE_READERS = 2