diff --git a/src/engine/platform/qsound.h b/src/engine/platform/qsound.h
index 18eb886b4..dbdffd051 100644
--- a/src/engine/platform/qsound.h
+++ b/src/engine/platform/qsound.h
@@ -35,6 +35,7 @@ class DivPlatformQSound: public DivDispatch {
       SharedChannel<int>(255),
       resVol(4095),
       sample(-1),
+      wave(-1),
       panning(0x10),
       echo(0),
       useWave(false),