diff --git a/arch/arm/src/sama5/sam_tsd.c b/arch/arm/src/sama5/sam_tsd.c
index 169acb94a01..5241296a5a2 100644
--- a/arch/arm/src/sama5/sam_tsd.c
+++ b/arch/arm/src/sama5/sam_tsd.c
@@ -69,6 +69,7 @@
 
 #include <arch/board/board.h>
 
+#include "up_arch.h"
 #include "chip/sam_adc.h"
 #include "sam_adc.h"
 #include "sam_tsd.h"