From 7bdee7261da27d5e5d9174d6e716f34a98deb1a1 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 10 Dec 2025 01:50:06 +0100
Subject: [PATCH] Update
 esphome/components/esp32_ble_client/ble_client_base.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 esphome/components/esp32_ble_client/ble_client_base.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/components/esp32_ble_client/ble_client_base.cpp b/esphome/components/esp32_ble_client/ble_client_base.cpp
index 795f4db7b2..a09390c747 100644
--- a/esphome/components/esp32_ble_client/ble_client_base.cpp
+++ b/esphome/components/esp32_ble_client/ble_client_base.cpp
@@ -524,7 +524,7 @@ void BLEClientBase::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_
     case ESP_GAP_BLE_AUTH_CMPL_EVT:
       if (!this->check_addr(param->ble_security.auth_cmpl.bd_addr))
         return;
-      char addr_str[18];
+      char addr_str[MAC_ADDR_STR_LEN];
       format_mac_addr_upper(param->ble_security.auth_cmpl.bd_addr, addr_str);
       ESP_LOGI(TAG, "[%d] [%s] auth complete addr: %s", this->connection_index_, this->address_str_, addr_str);
       if (!param->ble_security.auth_cmpl.success) {