diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index d762975a3..e219eb35a 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -281,7 +281,7 @@ static void espnow_recv_cb (const esp_now_recv_info_t *recv_info, const uint8_t
     evt.id = ESPNOW_RECV_CB;
     memcpy(recv_cb->mac_addr, mac_addr, ESP_NOW_ETH_ALEN);
     recv_cb->data = malloc(len);
-    ESP_LOGW(TAG, "Received payload: %u", recv_cb->data);
+    ESP_LOGW(TAG, "Received payload: %u8", recv_cb->data);
     if (recv_cb->data == NULL) {
         ESP_LOGE(TAG, "Malloc receive data fail");
         return;