diff --git a/egs/aishell/ASR/zipformer_bbpe/train.py b/egs/aishell/ASR/zipformer_bbpe/train.py
index 08f077370..ff89df8e0 100755
--- a/egs/aishell/ASR/zipformer_bbpe/train.py
+++ b/egs/aishell/ASR/zipformer_bbpe/train.py
@@ -1339,7 +1339,6 @@ def main():
     parser = get_parser()
     AishellAsrDataModule.add_arguments(parser)
     args = parser.parse_args()
-    args.lang_dir = Path(args.lang_dir)
     args.exp_dir = Path(args.exp_dir)
 
     world_size = args.world_size