diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index dd8f97e2..b20dede6 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -195,6 +195,11 @@ Follow these steps to start contributing:
    git commit
    ```
 
+   Note, if you already commited some changes that have a wrong formatting, you can use:
+   ```bash
+   pre-commit run --all-files
+   ```
+
    Please write [good commit messages](https://chris.beams.io/posts/git-commit/).
 
    It is a good idea to sync your copy of the code with the original
diff --git a/tests/scripts/save_policy_to_safetensor.py b/tests/scripts/save_policy_to_safetensor.py
index 5daf96e5..51af9f68 100644
--- a/tests/scripts/save_policy_to_safetensor.py
+++ b/tests/scripts/save_policy_to_safetensor.py
@@ -33,7 +33,8 @@ def get_policy_stats(env_name, policy_name, extra_overrides):
             f"env={env_name}",
             f"policy={policy_name}",
             "device=cpu",
-        ] + extra_overrides,
+        ]
+        + extra_overrides,
     )
     set_global_seed(1337)
     dataset = make_dataset(cfg)