diff --git a/README.md b/README.md
index cea31c7..10f9d0e 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,7 @@ The manifest file would do several important things:
 * `aria2c https://example.com/manifestdirectory/`
     * (fetches `https://example.com/manifestdirectory/index.mf`, downloads and checksums all files, resumes any that exist locally already)
 * `mfer fetch https://example.com/manifestdirectory/`
+* a command line option to zero/omit mtime/ctime, as well as manifest timestamp, and sort all directory listings so that manifest file generation is deterministic/reproducible
 
 # Use Cases