diff --git a/egs/aishell/ASR/transformer_ctc/.decode.py.swp b/egs/aishell/ASR/transformer_ctc/.decode.py.swp
index cd6204d12..02eedb6f4 100644
Binary files a/egs/aishell/ASR/transformer_ctc/.decode.py.swp and b/egs/aishell/ASR/transformer_ctc/.decode.py.swp differ
diff --git a/egs/aishell/ASR/transformer_ctc/decode.py b/egs/aishell/ASR/transformer_ctc/decode.py
index 80f068095..691a100e4 100755
--- a/egs/aishell/ASR/transformer_ctc/decode.py
+++ b/egs/aishell/ASR/transformer_ctc/decode.py
@@ -355,7 +355,7 @@ def decode_dataset(
     lexicon: Lexicon,
     sos_id: int,
     eos_id: int,
-    token_dict,
+    token_dict: dict,
 ) -> Dict[str, List[Tuple[str, List[str], List[str]]]]:
     """Decode dataset.