diff --git a/rtcllm/vad.py b/rtcllm/vad.py
index b5e3b79..d6bc5eb 100644
--- a/rtcllm/vad.py
+++ b/rtcllm/vad.py
@@ -139,7 +139,7 @@ class AudioTrackVad(MediaStreamTrack):
 		return fs
 
 	def frames_write_wave(self, frames):
-		fb = [ self.frame2btyes(f) for f in frames ]
+		fb = [ self.frame2bytes(f) for f in frames ]
 		ndarr = np.frombuffer(b''.join(fb), dtype=np.int16)
 		fn = temp_file(suffix='.wav')
 		write(fn, frames[0].sample_rate, ndarr)