diff --git a/egs/aishell/ASR/local/process_aidatatang_200zh.py b/egs/aishell/ASR/local/process_aidatatang_200zh.py
index 25351e1ae..ac2b86927 100755
--- a/egs/aishell/ASR/local/process_aidatatang_200zh.py
+++ b/egs/aishell/ASR/local/process_aidatatang_200zh.py
@@ -35,9 +35,7 @@ def preprocess_aidatatang_200zh():
 
     logging.info("Loading manifest")
     manifests = read_manifests_if_cached(
-        dataset_parts=dataset_parts,
-        output_dir=src_dir,
-        prefix="aidatatang"
+        dataset_parts=dataset_parts, output_dir=src_dir, prefix="aidatatang"
     )
     assert len(manifests) > 0