--- drivers/gud/Makefile
+++ drivers/gud/Makefile
@@ -1,7 +1,7 @@
#
# Makefile for the kernel mobicore drivers
#
-GUD_ROOT_FOLDER := drivers/gud/
+GUD_ROOT_FOLDER := $(srctree)/drivers/gud/
# add our modules to kernel.
obj-$(CONFIG_MOBICORE_API) += mcKernelApi.o
obj-$(CONFIG_MOBICORE_SUPPORT) += mcDrvModule.o