diff --git a/arch/arm/src/kinetis/kinetis_start.c b/arch/arm/src/kinetis/kinetis_start.c
index d139d9533a8..f70b9a73689 100644
--- a/arch/arm/src/kinetis/kinetis_start.c
+++ b/arch/arm/src/kinetis/kinetis_start.c
@@ -51,6 +51,7 @@
 
 #include "kinetis.h"
 #include "chip/kinetis_smc.h"
+#include "kinetis_mpuinit.h"
 #include "kinetis_userspace.h"
 
 #ifdef CONFIG_ARCH_FPU