diff --git a/boot/zephyr/io.c b/boot/zephyr/io.c
index fc1966d..e6d54d3 100644
--- a/boot/zephyr/io.c
+++ b/boot/zephyr/io.c
@@ -28,6 +28,7 @@
 #include <zephyr/linker/linker-defs.h>
 
 #include "target.h"
+#include "bootutil/bootutil_log.h"
 
 #if defined(CONFIG_BOOT_SERIAL_PIN_RESET) || defined(CONFIG_BOOT_FIRMWARE_LOADER_PIN_RESET)
 #include <zephyr/drivers/hwinfo.h>
@@ -78,6 +79,8 @@
 #error "Unsupported board: led0 devicetree alias is not defined"
 #endif
 
+BOOT_LOG_MODULE_DECLARE(mcuboot);
+
 void io_led_init(void)
 {
     if (!device_is_ready(led0.port)) {