diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 2dbeacc..8d51c49 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -167,6 +167,7 @@
 CONFIG_CONSOLE_TRUETYPE=y
 CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y
 CONFIG_VIDEO_SANDBOX_SDL=y
+CONFIG_FS_CBFS=y
 CONFIG_CMD_DHRYSTONE=y
 CONFIG_TPM=y
 CONFIG_LZ4=y