diff --git a/sys/conf/files.arm b/sys/conf/files.arm
index 4a5e9cc0bac9..eed9933129ec 100644
--- a/sys/conf/files.arm
+++ b/sys/conf/files.arm
@@ -99,6 +99,7 @@ dev/psci/psci.c			optional	psci
 dev/psci/smccc_arm.S		optional	psci
 dev/syscons/scgfbrndr.c		optional	sc
 dev/uart/uart_cpu_fdt.c		optional	uart fdt
+dev/usb/controller/dwc3.c	optional	fdt dwc3
 
 kern/msi_if.m			optional	intrng
 kern/pic_if.m			optional	intrng