diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7_streaming/zipformer.py b/egs/librispeech/ASR/pruned_transducer_stateless7_streaming/zipformer.py
index a5c422959..c7e45564f 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless7_streaming/zipformer.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7_streaming/zipformer.py
@@ -865,7 +865,7 @@ class ZipformerEncoderLayer(nn.Module):
             return final_dropout_rate
         else:
             return initial_dropout_rate - (
-                initial_dropout_rate * final_dropout_rate
+                initial_dropout_rate - final_dropout_rate
             ) * (self.batch_count / warmup_period)
 
     def forward(
diff --git a/egs/librispeech/ASR/streaming_conformer_ctc/conformer.py b/egs/librispeech/ASR/streaming_conformer_ctc/conformer.py
index 5fe92172e..be6fabf35 100644
--- a/egs/librispeech/ASR/streaming_conformer_ctc/conformer.py
+++ b/egs/librispeech/ASR/streaming_conformer_ctc/conformer.py
@@ -230,7 +230,7 @@ class Conformer(Transformer):
                 x, pos_emb, mask=mask, src_key_padding_mask=src_key_padding_mask
             )  # (T, B, F)
         else:
-            x = self.encoder(x, pos_emb, src_key_padding_mask=mask)  # (T, B, F)
+            x = self.encoder(x, pos_emb, src_key_padding_mask=src_key_padding_mask)  # (T, B, F)
 
         if self.normalize_before:
             x = self.after_norm(x)