diff --git a/rtcllm/vad.py b/rtcllm/vad.py
index 9f6b5b4..15268e8 100644
--- a/rtcllm/vad.py
+++ b/rtcllm/vad.py
@@ -4,6 +4,7 @@ import asyncio
 import collections
 import contextlib
 from appPublic.folderUtils import temp_file
+from appPublic.worker import awaitify
 from aiortc import MediaStreamTrack
 from aiortc.contrib.media import MediaBlackhole, MediaPlayer, MediaRecorder, MediaRelay
 import webrtcvad
@@ -137,6 +138,7 @@ class AudioTrackVad(MediaStreamTrack):
 		super().__init__()
 		self.track = track
 		self.vad = MyVad(callback=onvoiceend)
+		self.vad_check = awaitify(self.vad.vad_check)
 		# self.sample_rate = self.track.getSettings().sampleRate
 		# frameSize = self.track.getSettings().frameSize
 		# self.frame_duration_ms = (1000 * frameSize) / self.sample_rate
@@ -165,7 +167,7 @@ class AudioTrackVad(MediaStreamTrack):
 		try:
 			frames = to16000_160_frames(frame)
 			for frame in frames:
-				await self.vad.vad_check(frame)
+				await self.vad_check(frame)
 		except Exception as e:
 			print(f'{e=}')
 			print_exc()