diff --git a/paraformer/runtime/python/asr_all_in_one.py b/paraformer/runtime/python/asr_all_in_one.py
index 6a55da4..40ff7eb 100644
--- a/paraformer/runtime/python/asr_all_in_one.py
+++ b/paraformer/runtime/python/asr_all_in_one.py
@@ -100,7 +100,7 @@ def reset_asr(self):
         self.start_frame = 0
         self.end_frame = 0
         self.vad_pre_idx = 0
-        if getattr(self, 'asr_online', None):
+        if getattr(self, "asr_online", None):
             self.asr_online.reset_cache()
         self.vad.in_cache = None
         self.vad.vad.all_reset_detection()