diff --git a/src/mame/drivers/sfcbox.c b/src/mame/drivers/sfcbox.c
index 79dc11f737a..c7acb2cf3e0 100644
--- a/src/mame/drivers/sfcbox.c
+++ b/src/mame/drivers/sfcbox.c
@@ -282,7 +282,7 @@ ROM_START( pss62 )
 //  ROM_REGION( MAX_SNES_CART_SIZE, "cart", ROMREGION_ERASE00 )
 ROM_END
 
-GAME( 199?, sfcbox,      0,     sfcbox,      snes,    snes,    ROT0, "Nintendo",                   "Super Famicom Box BIOS", GAME_IS_BIOS_ROOT )
+GAME( 199?, sfcbox,      0,     sfcbox,      snes,    snes,    ROT0, "Nintendo",                   "Super Famicom Box BIOS", GAME_IS_BIOS_ROOT | GAME_NOT_WORKING )
 //pss61 - Super Mario Kart / Super Mario Collection / Star Fox
 GAME( 199?, pss62,       sfcbox,     sfcbox,      snes,    snes,    ROT0,  "T&E Soft / I'Max",         "New Super 3D Golf Simulation - Waialae No Kiseki / Super Mahjong 2 (Super Famicom Box)", GAME_NOT_WORKING )
 //pss63 - Super Donkey Kong / Super Tetris 2 + Bombliss