diff --git a/scripts/data_collector/contrib/fill_cn_1min_data/README.md b/scripts/data_collector/contrib/fill_cn_1min_data/README.md
index 32e5ba8622..4a3509f1dd 100644
--- a/scripts/data_collector/contrib/fill_cn_1min_data/README.md
+++ b/scripts/data_collector/contrib/fill_cn_1min_data/README.md
@@ -10,7 +10,7 @@ pip install -r requirements.txt
 ## fill 1min data
 
 ```bash
-python fill_1min_using_1d.py --data_1min_dir ~/.qlib/csv_data/cn_data_1min --qlib_data_1d_dir ~/.qlib/qlib_data/cn_data
+python fill_cn_1min_data.py --data_1min_dir ~/.qlib/csv_data/cn_data_1min --qlib_data_1d_dir ~/.qlib/qlib_data/cn_data
 ```
 
 ## Parameters