diff --git a/Makefile b/Makefile
index a5d5267..8676a4e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,8 @@
+KERNEL_DIR=/lib/modules/$(shell uname -r)/build
+
 obj-m += scream.o
 
 all:
-	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+	make -C $(KERNEL_DIR) M=$(PWD) modules
 clean:
-	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
\ No newline at end of file
+	make -C $(KERNEL_DIR) M=$(PWD) clean
\ No newline at end of file