diff --git a/drivers/gpu/host1x/Makefile b/drivers/gpu/host1x/Makefile
index 0d61d12a..87be3871 100644
--- a/drivers/gpu/host1x/Makefile
+++ b/drivers/gpu/host1x/Makefile
@@ -1,5 +1,5 @@
 ccflags-y += -Idrivers/gpu/host1x
-ccflags-y += -I../nvidia/drivers/gpu/host1x
+ccflags-y += -I$(srctree.nvidia)/drivers/gpu/host1x
 
 host1x-t186-y = \
 	dev_t186.o \