diff --git a/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_dev_test.py b/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_dev_test.py
index 5e169e8949..2bbe285602 100755
--- a/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_dev_test.py
+++ b/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_dev_test.py
@@ -111,9 +111,8 @@ def compute_fbank_kespeech_dev_test(args):
         )
 
         if args.speed_perturb:
-            cut_set = (
-                    cut_set + cut_set.perturb_speed(0.9) + cut_set.perturb_speed(1.1)
-            )
+            cut_set = cut_set + cut_set.perturb_speed(0.9) + cut_set.perturb_speed(1.1)
+
         logging.info("Computing features")
         cut_set = cut_set.compute_and_store_features_batch(
             extractor=extractor,
diff --git a/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_splits.py b/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_splits.py
index 6bb8af0d6a..fe7f87337f 100755
--- a/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_splits.py
+++ b/egs/multi_zh-hans/ASR/local/compute_fbank_kespeech_splits.py
@@ -167,9 +167,7 @@ def compute_fbank_kespeech_splits(args):
         )
 
         if args.speed_perturb:
-            cut_set = (
-                    cut_set + cut_set.perturb_speed(0.9) + cut_set.perturb_speed(1.1)
-            )
+            cut_set = cut_set + cut_set.perturb_speed(0.9) + cut_set.perturb_speed(1.1)
 
         logging.info("Computing features")
         cut_set = cut_set.compute_and_store_features_batch(