diff --git a/parts/scenes/setting_video.lua b/parts/scenes/setting_video.lua
index 8d58c8e6..d16d5df9 100644
--- a/parts/scenes/setting_video.lua
+++ b/parts/scenes/setting_video.lua
@@ -98,7 +98,7 @@ scene.widgetList={
         },
     WIDGET.newSlider{name='bgAlpha',      x=1020,y=1430,w=200,
         axis={0,.8},disp=SETval('bgAlpha'),
-        code=function(v)SETTING.bgAlpha=v BG.send(v)end,
+        code=function(v)SETTING.bgAlpha=v BG.send(v,v,v)end,
         hideF=function()return SETTING.bg=='on'end
         },