diff --git a/boards/arm/kinetis/freedom-k64f/src/k64_buttons.c b/boards/arm/kinetis/freedom-k64f/src/k64_buttons.c
index 7f7e964d469..5e5f9a483fc 100644
--- a/boards/arm/kinetis/freedom-k64f/src/k64_buttons.c
+++ b/boards/arm/kinetis/freedom-k64f/src/k64_buttons.c
@@ -46,6 +46,8 @@
 #include <nuttx/board.h>
 #include <arch/board/board.h>
 
+#include "kinetis.h"
+
 #include "freedom-k64f.h"
 
 #ifdef CONFIG_ARCH_BUTTONS