diff --git a/Makefile b/Makefile
index 25e5a49..d0a34a2 100644
--- a/Makefile
+++ b/Makefile
@@ -7,11 +7,14 @@ netcat-y+= tracks/trk4.o
 netcat-y+= tracks/trk5.o
 netcat-y+= tracks/trk6.o
 
-KERNELDIR	?=  /lib/modules/$(shell uname -r)/build
-PWD		:= $(shell pwd)
+KERNELRELEASE ?= $(shell uname -r)
+KDIR ?= /lib/modules/$(KERNELRELEASE)/build
+PWD ?= $(shell pwd)
 
-all:
-	$(MAKE) -C $(KERNELDIR) M=$(PWD)
+ccflags-y := -Werror
 
-clean:
-	$(MAKE) -C $(KERNELDIR) M=$(PWD) clean
+default: modules
+install: modules_install
+
+modules modules_install clean:
+	$(MAKE) -C $(KDIR) M=$(PWD) $@