diff --git a/kernel/arch/arm/cortex-m7/iar/los_mpu.c b/kernel/arch/arm/cortex-m7/iar/los_mpu.c
index 5d7c7c71..884bd893 100644
--- a/kernel/arch/arm/cortex-m7/iar/los_mpu.c
+++ b/kernel/arch/arm/cortex-m7/iar/los_mpu.c
@@ -29,6 +29,7 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #include "los_mpu.h"
+#include "los_config.h"
 #include "los_context.h"