diff --git a/Core/HW/SasAudio.cpp b/Core/HW/SasAudio.cpp
index 3af3df4584..9f263bd24e 100644
--- a/Core/HW/SasAudio.cpp
+++ b/Core/HW/SasAudio.cpp
@@ -639,6 +639,7 @@ void SasVoice::KeyOn() {
 	playing = true;
 	on = true;
 	paused = false;
+	sampleFrac = 0;
 }
 
 void SasVoice::KeyOff() {