diff --git a/src/engine/instrument.h b/src/engine/instrument.h
index 5d3bf695c..909626a32 100644
--- a/src/engine/instrument.h
+++ b/src/engine/instrument.h
@@ -950,7 +950,7 @@ struct DivInstrumentSID3 {
     pulseOn(false),
     noiseOn(false),
     a(0),
-    d(8),
+    d(64),
     s(0),
     r(0),
     sr(0),