diff --git a/boot/boot_serial/src/boot_serial.c b/boot/boot_serial/src/boot_serial.c
index 1ccf30ec..9a82804e 100644
--- a/boot/boot_serial/src/boot_serial.c
+++ b/boot/boot_serial/src/boot_serial.c
@@ -33,6 +33,7 @@
 #include <zephyr/sys/byteorder.h>
 #include <zephyr/sys/__assert.h>
 #include <zephyr/drivers/flash.h>
+#include <zephyr/kernel.h>
 #include <zephyr/sys/crc.h>
 #include <zephyr/sys/base64.h>
 #include <hal/hal_flash.h>