diff --git a/egs/librispeech/ASR/conformer_ctc/conformer.py b/egs/librispeech/ASR/conformer_ctc/conformer.py
index 91f8cf694..5a4dfa686 100644
--- a/egs/librispeech/ASR/conformer_ctc/conformer.py
+++ b/egs/librispeech/ASR/conformer_ctc/conformer.py
@@ -193,10 +193,14 @@ class ConformerEncoderLayer(nn.Module):
 
         self.normalize_before = normalize_before
 
-        self.linear1 = nn.Linear(512, 1024)
-        self.conv1d_abs = Conv1dAbs(1024, 64, kernel_size=21, padding=10)
+        self.in_channel = 1024
+        self.out_channel = 64
+        self.kernel_size = 21
+        self.padding = 10
+        self.linear1 = nn.Linear(512, self.in_channel)
+        self.conv1d_abs = Conv1dAbs(self.in_channel, self.out_channel, kernel_size=self.kernel_size, padding=self.padding)
         self.activation = nn.ReLU()
-        self.linear2 = nn.Linear(64, 512)
+        self.linear2 = nn.Linear(self.out_channel, 512)
 
     def forward(
         self,
@@ -239,7 +243,7 @@ class ConformerEncoderLayer(nn.Module):
         src = self.linear1(src)
         src = torch.exp(src.clamp(max=75))
         src = src.permute(1, 2, 0)
-        src = self.conv1d_abs(src)
+        src = self.conv1d_abs(src) / self.kernel_size
         src = self.activation(src).permute(2, 0, 1)
         src = torch.log(src)
         src = self.linear2(src)