diff --git a/sys/modules/otus/Makefile b/sys/modules/otus/Makefile
index a7a84a87d9cb..b263c06ab2df 100644
--- a/sys/modules/otus/Makefile
+++ b/sys/modules/otus/Makefile
@@ -5,6 +5,6 @@
 KMOD    = if_otus
 SRCS    = if_otus.c if_otusreg.h	\
 	  bus_if.h device_if.h		\
-	  opt_bus.h opt_usb.h usb_if.h usbdevs.h
+	  opt_bus.h opt_usb.h opt_wlan.h usb_if.h usbdevs.h
 
 .include <bsd.kmod.mk>