diff --git a/egs/librispeech/ASR/conformer_ctc2/.train.py.swp b/egs/librispeech/ASR/conformer_ctc2/.train.py.swp
index 0e8586278..c27e03208 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 2534be386..4e3b9f0a2 100755
--- a/egs/librispeech/ASR/conformer_ctc2/train.py
+++ b/egs/librispeech/ASR/conformer_ctc2/train.py
@@ -158,6 +158,12 @@ def add_model_arguments(parser: argparse.ArgumentParser) -> None:
         type=str2bool,
         default=False,
     )
+    
+    parser.add_argument(
+        "--learnable-alpha",
+        type=str2bool,
+        default=True,
+    )
 
     parser.add_argument(
         "--interctc-weight",