diff --git a/zsnes/src/ui.asm b/zsnes/src/ui.asm
index b61bdee6..aec59511 100644
--- a/zsnes/src/ui.asm
+++ b/zsnes/src/ui.asm
@@ -71,6 +71,9 @@ NEWSYM zstart
 
 	call setnoise
 	call InitSPC
+%ifndef __MSDOS__
+	mov byte[soundon],0
+%endif
 	call allocmem           ;allocate memory
 
 	cmp byte[soundon],0