diff --git a/arch/riscv/configs/revyos_defconfig b/arch/riscv/configs/revyos_defconfig
index a88935887..b75777e1c 100644
--- a/arch/riscv/configs/revyos_defconfig
+++ b/arch/riscv/configs/revyos_defconfig
@@ -279,6 +279,7 @@ CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_PLATFORM=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_ACM=m
 CONFIG_USB_STORAGE=y
 CONFIG_USB_STORAGE_SDDR09=y
 CONFIG_USB_STORAGE_SDDR55=y