From 2ffa57c907585593bc26a8a95b487cc3ab9c2985 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 16 Sep 2026 01:07:27 -0500
Subject: [PATCH] [esp32_ble_tracker] Initialize ESPBTClient::app_id (#19199)

---
 esphome/components/esp32_ble_tracker/esp32_ble_tracker.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h b/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
index 1a424a4a8e8..aa470983df9 100644
--- a/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
+++ b/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
@@ -135,7 +135,7 @@ class ESPBTClient : public ESPBTDeviceListener {
   void set_tracker_state_version(uint8_t *version) { this->tracker_state_version_ = version; }
 
   // Memory optimized layout
-  uint8_t app_id;  // App IDs are small integers assigned sequentially
+  uint8_t app_id{0};  // App IDs are small integers assigned sequentially
 
  protected:
   /// Set state without IDLE handling - use for direct state transitions.