diff --git a/egs/librispeech/ASR/conformer_ctc2/.train.py.swp b/egs/librispeech/ASR/conformer_ctc2/.train.py.swp
index 599acce34..1eff68e84 100644
Binary files a/egs/librispeech/ASR/conformer_ctc2/.train.py.swp and b/egs/librispeech/ASR/conformer_ctc2/.train.py.swp differ
diff --git a/egs/librispeech/ASR/conformer_ctc2/train.py b/egs/librispeech/ASR/conformer_ctc2/train.py
index 5a1d0f8b9..68c3ef085 100755
--- a/egs/librispeech/ASR/conformer_ctc2/train.py
+++ b/egs/librispeech/ASR/conformer_ctc2/train.py
@@ -325,6 +325,13 @@ def get_parser() -> argparse.ArgumentParser:
         help="Whether to use half precision training.",
     )
     
+    parser.add_argument(
+        "--unused-params",
+        type=str2bool,
+        default=False,
+        help="Whether to use half precision training.",
+    )
+
     add_model_arguments(parser)
 
     return parser