diff --git a/paddlespeech/cli/cls/infer.py b/paddlespeech/cli/cls/infer.py
index 2b62603197555b8f503539e4979e273661a74db1..5b5894fa37881b7a117ce017bea0857b9e164089 100644
--- a/paddlespeech/cli/cls/infer.py
+++ b/paddlespeech/cli/cls/infer.py
@@ -173,7 +173,6 @@ class CLSExecutor(BaseExecutor):
         logger.info("Preprocessing audio_file:" + audio_file)
 
         # Feature extraction
-        # TODO: Feature args save into cfg file.
         feature_extractor = LogMelSpectrogram(
             sr=feat_conf['sample_rate'],
             n_fft=feat_conf['n_fft'],