diff --git a/egs/librispeech/ASR/conformer_ctc2/.conformer.py.swp b/egs/librispeech/ASR/conformer_ctc2/.conformer.py.swp
index aa55848ac..93cbd2f3e 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 49b45ec7f..ed776be53 100644
--- a/egs/librispeech/ASR/conformer_ctc2/conformer.py
+++ b/egs/librispeech/ASR/conformer_ctc2/conformer.py
@@ -150,6 +150,10 @@ class Conformer(Transformer):
         )  # (T, N, C)
         
         if self.group_num != 0:
+            x = 0
+            for enum, alpha in enumerate(self.alpha):
+                x += self.sigmoid(alpha) * layer_outputs[(enum+1)*self.group_layer_num-1]
+            x = self.layer_norm(x/self.group_num)
         # x = x.permute(1, 0, 2)  # (T, N, C) ->(N, T, C)