--- a/drivers/net/wireless/rtl8812au/hal/phydm/phydm.mk
+++ b/drivers/net/wireless/rtl8812au/hal/phydm/phydm.mk
@@ -1,4 +1,4 @@
-EXTRA_CFLAGS += -I$(src)/hal/phydm
+EXTRA_CFLAGS += -I$(srctree)/drivers/net/wireless/rtl8812au/hal/phydm
 
 _PHYDM_FILES := hal/phydm/phydm_debug.o	\
								hal/phydm/phydm_antdiv.o\
--- a/drivers/net/wireless/rtl8812au/hal/phydm/sd4_phydm_2_kernel.mk
+++ b/drivers/net/wireless/rtl8812au/hal/phydm/sd4_phydm_2_kernel.mk
@@ -1,4 +1,4 @@
-EXTRA_CFLAGS += -I$(src)/hal/phydm
+EXTRA_CFLAGS += -I$(srctree)/drivers/net/wireless/rtl8812au/hal/phydm
 
 _PHYDM_FILES := hal/phydm/phydm_debug.o	\
								hal/phydm/phydm_interface.o\