diff --git a/dmx_usb_module/Makefile b/dmx_usb_module/Makefile
--- a/dmx_usb_module/Makefile
+++ b/dmx_usb_module/Makefile
@@ -13,7 +13,7 @@ PWD	:= $(shell pwd)
 
 default:
 	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
-	gcc -O2 -pipe dmx_usb_test.c -o dmx_usb_test
+	gcc -O2 -pipe -Wall dmx_usb_test.c -o dmx_usb_test
 
 endif
 
@@ -23,7 +23,6 @@ clean:
 	rm -f dmx_usb.mod.c
 	rm -f .dmx_usb.*
 	rm -rf .tmp_versions
+	rm -f Module.markers  modules.order  Module.symvers
 
 
-drew:
-	gcc dmx_usb.c -o dmx_usb.o -I/usr/src/linux-source-2.6.15/include
\ No newline at end of file