diff --git a/README.md b/README.md
index a778ba5..6b11e06 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,9 @@ python doi2dataset.py [options] DOI1 DOI2 ...
 - `-u, --upload`
   Upload metadata to a Dataverse.org server.
 
+- `-r, --use-ror`
+  Use Research Organization Registry (ROR) identifiers for institutions when available.
+
 ## Documentation
 
 Documentation is generated using Sphinx. See the `docs/` directory for detailed API references and usage examples.