diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index f6af1a89f..714f8eea1 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -83,7 +83,7 @@ static uint8_t s_led_state = 0;
 /* ESP NOW*/
 #define ESPNOW_MAXDELAY 512
 static QueueHandle_t espnow_queue;
-static uint8_t broadcast_mac[ESP_NOW_ETH_ALEN] = {};
+static uint8_t broadcast_mac[ESP_NOW_ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 static uint8_t espnow_seq[ESPNOW_DATA_MAX] = {0, 0};
 static uint8_t espnow_broadcast_mac[ESP_NOW_ETH_ALEN] = {};
 typedef struct struct_message {