diff --git a/ChangeLog b/ChangeLog
index 9b95a65..e0829be 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
 User johns
 Date:
 
+    Fix bug: alloca wrong size for audio buffer.
     Handle jump in stream like stream start.
     Always compile audio drift correction.
     Add audio drift correction configuration to the setup.
diff --git a/audio.c b/audio.c
index 9753970..84e2748 100644
--- a/audio.c
+++ b/audio.c
@@ -3561,7 +3561,7 @@ void AudioEnqueue(const void *samples, int count)
     frames =
 	count / (AudioRing[AudioRingWrite].InChannels * AudioBytesProSample);
     buffer =
-	alloca(frames * AudioRing[AudioRingWrite].InChannels *
+	alloca(frames * AudioRing[AudioRingWrite].HwChannels *
 	AudioBytesProSample);
     AudioResample(samples, AudioRing[AudioRingWrite].InChannels, frames,
 	buffer, AudioRing[AudioRingWrite].HwChannels);