diff --git a/sys/modules/usb/mtw/Makefile b/sys/modules/usb/mtw/Makefile
index 10c544e9cd13..3495f2e0ff05 100644
--- a/sys/modules/usb/mtw/Makefile
+++ b/sys/modules/usb/mtw/Makefile
@@ -1,9 +1,9 @@
 S=	${SRCTOP}/sys
 
 .PATH:	$S/dev/usb/wlan
 
 KMOD=	if_mtw
 SRCS=	opt_bus.h opt_usb.h opt_wlan.h device_if.h bus_if.h usb_if.h \
 	usbdevs.h if_mtw.c
-DEBUG_FLAGS=-g
+
 .include <bsd.kmod.mk>