diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index a814443..eda595f 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -203,6 +203,7 @@
 CONFIG_DM_USB=y
 CONFIG_USB_EMUL=y
 CONFIG_USB_KEYBOARD=y
+CONFIG_USB_KEYBOARD_FN_KEYS=y
 CONFIG_DM_VIDEO=y
 CONFIG_CONSOLE_ROTATION=y
 CONFIG_CONSOLE_TRUETYPE=y