diff --git a/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c b/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c
index 1458d80d0..ce08fd06b 100644
--- a/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c
+++ b/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c
@@ -16,7 +16,7 @@
 */
 
 #include <stdio.h>
-#include "esp_system.h"
+#include "nvs_flah.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "esp_log.h"