diff --git a/arch/arm/src/armv7-a/arm_syscall.c b/arch/arm/src/armv7-a/arm_syscall.c
index 846849b3320..a312d963631 100644
--- a/arch/arm/src/armv7-a/arm_syscall.c
+++ b/arch/arm/src/armv7-a/arm_syscall.c
@@ -51,6 +51,7 @@
 
 #include "arm.h"
 #include "svcall.h"
+#include "up_internal.h"
 
 /****************************************************************************
  * Pre-processor Definitions