diff --git a/egs/tedlium2/ASR/conformer_ctc3/.conformer.py.swp b/egs/tedlium2/ASR/conformer_ctc3/.conformer.py.swp
index 3eade0ffa..5f4bb8975 100644
Binary files a/egs/tedlium2/ASR/conformer_ctc3/.conformer.py.swp and b/egs/tedlium2/ASR/conformer_ctc3/.conformer.py.swp differ
diff --git a/egs/tedlium2/ASR/conformer_ctc3/.train.py.swp b/egs/tedlium2/ASR/conformer_ctc3/.train.py.swp
index 249ea38eb..667597d2a 100644
Binary files a/egs/tedlium2/ASR/conformer_ctc3/.train.py.swp and b/egs/tedlium2/ASR/conformer_ctc3/.train.py.swp differ
diff --git a/egs/tedlium2/ASR/conformer_ctc3/train.py b/egs/tedlium2/ASR/conformer_ctc3/train.py
index 6536ecff4..514aa16ec 100755
--- a/egs/tedlium2/ASR/conformer_ctc3/train.py
+++ b/egs/tedlium2/ASR/conformer_ctc3/train.py
@@ -132,6 +132,13 @@ def add_model_arguments(parser: argparse.ArgumentParser) -> None:
         default=256,
         help="Attention dimension in the conformer model.",
     )
+    
+    parser.add_argument(
+        "--kernel-size",
+        type=int,
+        default=15,
+        help="Attention dimension in the conformer model.",
+    )
 
 
 def get_parser() -> argparse.ArgumentParser: