diff --git a/sys/modules/usb/Makefile b/sys/modules/usb/Makefile
index 29255e7aa130..6f2626fe4dfe 100644
--- a/sys/modules/usb/Makefile
+++ b/sys/modules/usb/Makefile
@@ -32,7 +32,7 @@
 
 SUBDIR = usb
 SUBDIR += ${_dwc_otg} ehci ${_musb} ohci uhci xhci ${_uss820dci} ${_at91dci} ${_atmegadci} ${_avr32dci}
-SUBDIR += ${_rum} run ${_uath} upgt usie ural ${_zyd} ${_urtw} urtwn
+SUBDIR += ${_rum} run ${_uath} upgt usie ural ${_zyd} ${_urtw} urtwn urtwnfw
 SUBDIR += atp uhid ukbd ums udbp ufm uep
 SUBDIR += ucom u3g uark ubsa ubser uchcom ucycom ufoma uftdi ugensa uipaq ulpt \
 	  umct umcs umodem umoscom uplcom uslcom uvisor uvscom