diff --git a/expo/README.md b/expo/README.md
index 5b913e415..6704582b8 100644
--- a/expo/README.md
+++ b/expo/README.md
@@ -104,7 +104,7 @@ #### MLE-Bench
 
 Enter the following command to run the experiment:
 ```
-python run_experiment.py --exp_mode mcts --custom_dataset_dir <dataset-dir-save-path/prepared/public> --rollouts 10 --from_scratch
+python run_experiment.py --exp_mode mcts --custom_dataset_dir <dataset-dir-save-path/prepared/public> --rollouts 10 --from_scratch --role_timeout 3600
 ```