diff --git a/cube/swiss/source/devices/diskio.c b/cube/swiss/source/devices/diskio.c
index b7a7231a..c1a625d5 100644
--- a/cube/swiss/source/devices/diskio.c
+++ b/cube/swiss/source/devices/diskio.c
@@ -16,7 +16,7 @@
 #include "wkf.h"
 #include "ff_cache/cache.h"
 
-const DISC_INTERFACE *driver[FF_VOLUMES] = { &__io_gcsda, &__io_gcsda, &__io_ataa, &__io_atab, &__io_wkf};
+const DISC_INTERFACE *driver[FF_VOLUMES] = { &__io_gcsda, &__io_gcsdb, &__io_ataa, &__io_atab, &__io_wkf};
 static bool disk_isInit[FF_VOLUMES] = {0,0,0,0,0};
 
 // Disk caches