diff --git a/os/common/startup/ARM/compilers/GCC/mk/startup_sama5d2.mk b/os/common/startup/ARM/compilers/GCC/mk/startup_sama5d2.mk
index 9b91abab2..cbc14536c 100755
--- a/os/common/startup/ARM/compilers/GCC/mk/startup_sama5d2.mk
+++ b/os/common/startup/ARM/compilers/GCC/mk/startup_sama5d2.mk
@@ -1,5 +1,6 @@
 # List of the ChibiOS generic SAMA5D2 file.
-STARTUPSRC = $(CHIBIOS)/os/common/startup/ARM/compilers/GCC/crt1.c
+STARTUPSRC = $(CHIBIOS)/os/common/startup/ARM/compilers/GCC/crt1.c \
+			 $(CHIBIOS)/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.c
 
 STARTUPASM = $(CHIBIOS)/os/common/startup/ARM/devices/SAMA5D2/boot.S \
              $(CHIBIOS)/os/common/startup/ARM/compilers/GCC/vectors.S \
@@ -7,7 +8,8 @@ STARTUPASM = $(CHIBIOS)/os/common/startup/ARM/devices/SAMA5D2/boot.S \
 
 STARTUPINC = $(CHIBIOS)/os/common/portability/GCC \
              ${CHIBIOS}/os/common/startup/ARM/devices/SAMA5D2 \
-             $(CHIBIOS)/os/common/ext/ARM/CMSIS/Core_A/Include 
+             $(CHIBIOS)/os/common/ext/ARM/CMSIS/Core_A/Include \
+             $(CHIBIOS)/os/common/portability/GCC 
 
 STARTUPLD  = ${CHIBIOS}/os/common/startup/ARM/compilers/GCC/ld