diff --git a/src/gb/audio.c b/src/gb/audio.c
index 516c6c663..a1af17247 100644
--- a/src/gb/audio.c
+++ b/src/gb/audio.c
@@ -116,6 +116,7 @@ void GBAudioReset(struct GBAudio* audio) {
 	audio->ch3.wavedata8[13] = 0xFF;
 	audio->ch3.wavedata8[14] = 0x00;
 	audio->ch3.wavedata8[15] = 0xFF;
+	audio->ch3.window = 0;
 	audio->ch4 = (struct GBAudioNoiseChannel) { .envelope = { .dead = 2 } };
 	audio->frame = 0;
 	audio->sampleInterval = SAMPLE_INTERVAL * GB_MAX_SAMPLES;