diff --git a/ESP-IDF_Robot_RC/main/receiver.c b/ESP-IDF_Robot_RC/main/receiver.c
index ab03d0d40..12f60fe44 100644
--- a/ESP-IDF_Robot_RC/main/receiver.c
+++ b/ESP-IDF_Robot_RC/main/receiver.c
@@ -1,3 +1,5 @@
+#include "freertos/FreeRTOS.h"
+
 void onDataReceived (uint8_t *mac_addr, uint8_t *data, uint8_t data_len) {
 
     //memcpy(buf, data, data_len);