diff --git a/egs/librispeech/ASR/conformer_ctc2/.conformer.py.swp b/egs/librispeech/ASR/conformer_ctc2/.conformer.py.swp
index f500be1a5..9544784aa 100644
Binary files a/egs/librispeech/ASR/conformer_ctc2/.conformer.py.swp and b/egs/librispeech/ASR/conformer_ctc2/.conformer.py.swp differ
diff --git a/egs/librispeech/ASR/conformer_ctc2/conformer.py b/egs/librispeech/ASR/conformer_ctc2/conformer.py
index 7245c1166..e3e9ce522 100644
--- a/egs/librispeech/ASR/conformer_ctc2/conformer.py
+++ b/egs/librispeech/ASR/conformer_ctc2/conformer.py
@@ -136,6 +136,7 @@ class Conformer(Transformer):
 
         self.group_num = group_num
         if self.group_num != 0:
+            self.learnable_alpha = learnable_alpha
             self.group_layer_num = int(num_encoder_layers // self.group_num)
             self.alpha = nn.Parameter(torch.rand(self.group_num))
             self.sigmoid = nn.Sigmoid()