diff --git a/egs/aidatatang_200zh/ASR/zipformer/streaming_decode.py b/egs/aidatatang_200zh/ASR/zipformer/streaming_decode.py
index f95f02cad..23c11d9b9 100755
--- a/egs/aidatatang_200zh/ASR/zipformer/streaming_decode.py
+++ b/egs/aidatatang_200zh/ASR/zipformer/streaming_decode.py
@@ -386,11 +386,7 @@ def streaming_forward(
     Returns encoder outputs, output lengths, and updated states.
     """
     cached_embed_left_pad = states[-2]
-    (
-        x,
-        x_lens,
-        new_cached_embed_left_pad,
-    ) = model.encoder_embed.streaming_forward(
+    (x, x_lens, new_cached_embed_left_pad,) = model.encoder_embed.streaming_forward(
         x=features,
         x_lens=feature_lens,
         cached_left_pad=cached_embed_left_pad,
diff --git a/egs/aishell/ASR/zipformer/streaming_decode.py b/egs/aishell/ASR/zipformer/streaming_decode.py
index 386e0d920..c3820447a 100755
--- a/egs/aishell/ASR/zipformer/streaming_decode.py
+++ b/egs/aishell/ASR/zipformer/streaming_decode.py
@@ -386,11 +386,7 @@ def streaming_forward(
     Returns encoder outputs, output lengths, and updated states.
     """
     cached_embed_left_pad = states[-2]
-    (
-        x,
-        x_lens,
-        new_cached_embed_left_pad,
-    ) = model.encoder_embed.streaming_forward(
+    (x, x_lens, new_cached_embed_left_pad,) = model.encoder_embed.streaming_forward(
         x=features,
         x_lens=feature_lens,
         cached_left_pad=cached_embed_left_pad,
diff --git a/egs/aishell2/ASR/zipformer/streaming_decode.py b/egs/aishell2/ASR/zipformer/streaming_decode.py
index dfb0123a5..1b43a9366 100755
--- a/egs/aishell2/ASR/zipformer/streaming_decode.py
+++ b/egs/aishell2/ASR/zipformer/streaming_decode.py
@@ -386,11 +386,7 @@ def streaming_forward(
     Returns encoder outputs, output lengths, and updated states.
     """
     cached_embed_left_pad = states[-2]
-    (
-        x,
-        x_lens,
-        new_cached_embed_left_pad,
-    ) = model.encoder_embed.streaming_forward(
+    (x, x_lens, new_cached_embed_left_pad,) = model.encoder_embed.streaming_forward(
         x=features,
         x_lens=feature_lens,
         cached_left_pad=cached_embed_left_pad,