diff --git a/components/bt/common/btc/profile/esp/blufi/bluedroid_host/esp_blufi.c b/components/bt/common/btc/profile/esp/blufi/bluedroid_host/esp_blufi.c
index d55007de50..ff0b96600a 100644
--- a/components/bt/common/btc/profile/esp/blufi/bluedroid_host/esp_blufi.c
+++ b/components/bt/common/btc/profile/esp/blufi/bluedroid_host/esp_blufi.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -35,12 +35,6 @@
 
 #if (BLUFI_INCLUDED == TRUE)
 
-#if GATT_DYNAMIC_MEMORY == FALSE
-tBLUFI_ENV blufi_env;
-#else
-tBLUFI_ENV *blufi_env_ptr;
-#endif
-
 static uint8_t server_if;
 static uint16_t conn_id;
 static uint8_t blufi_service_uuid128[32] = {
diff --git a/components/bt/common/btc/profile/esp/blufi/blufi_protocol.c b/components/bt/common/btc/profile/esp/blufi/blufi_protocol.c
index d2828df0d8..24f81c5fab 100644
--- a/components/bt/common/btc/profile/esp/blufi/blufi_protocol.c
+++ b/components/bt/common/btc/profile/esp/blufi/blufi_protocol.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -18,7 +18,6 @@
 
 //#include "esp_wifi.h"
 #if (BLUFI_INCLUDED == TRUE)
-// extern tBLUFI_ENV blufi_env;
 
 void btc_blufi_protocol_handler(uint8_t type, uint8_t *data, int len)
 {