diff --git a/ESP-IDF_Robot/main/mqtt.c b/ESP-IDF_Robot/main/mqtt.c
index 476d1da1b..f6abf26cc 100644
--- a/ESP-IDF_Robot/main/mqtt.c
+++ b/ESP-IDF_Robot/main/mqtt.c
@@ -2,6 +2,7 @@
 #include "esp_wifi.h"
 #include "esp_log.h"
 #include "esp_event.h"
+#include "esp_err.h"
 
 #include "mqtt.h"