diff --git a/README.md b/README.md
index 07821fef..03be6b61 100644
--- a/README.md
+++ b/README.md
@@ -20,4 +20,4 @@ If you update the commits database, run `xz -v9 -k data/commits.json`.
 
 ## Usage
 
-Run the `run.py` script to perform training / classification. The first time `run.py` is executed, the `--download` argument should be used to download databases containing bugs and commits data.
+Run the `run.py` script to perform training / classification. The first time `run.py` is executed, the `--train` argument should be used to automatically download databases containing bugs and commits data.