1 files changed, 3 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index efb47ad..178b026 100644
--- a/Makefile
+++ b/Makefile
@@ -148,7 +148,9 @@ CPPWARN = -Wall -Wextra -Wundef
 #
 
 # List all user C define here, like -D_DEBUG=1
-UDEFS = -DCORTEX_ENABLE_WFI_IDLE=TRUE -DPORT_USE_SYSCALL=TRUE
+UDEFS = -DCORTEX_ENABLE_WFI_IDLE=TRUE \
+		-DPORT_USE_SYSCALL=TRUE \
+		-DPORT_USE_GUARD_MPU_REGION=MPU_REGION_0
 
 # Define ASM defines here
 UADEFS =