diff --git a/ESP-IDF_Robot_RC/main/controller.h b/ESP-IDF_Robot_RC/main/controller.h
index 1c9e22b6b..1f85b48d5 100644
--- a/ESP-IDF_Robot_RC/main/controller.h
+++ b/ESP-IDF_Robot_RC/main/controller.h
@@ -5,6 +5,7 @@
 #ifndef CONTROLLER_H
 #define CONTROLLER_H
 
+void onDataSent (uint8_t *mac_addr, esp_now_send_status_t status);
 void sensors_data_prepare(espnow_data_packet_t *send_packet);
 
 #endif
\ No newline at end of file