diff --git a/esphome/components/bluetooth_proxy/bluetooth_proxy.h b/esphome/components/bluetooth_proxy/bluetooth_proxy.h
index 26f99fcca2..d3e3144831 100644
--- a/esphome/components/bluetooth_proxy/bluetooth_proxy.h
+++ b/esphome/components/bluetooth_proxy/bluetooth_proxy.h
@@ -242,13 +242,13 @@ class BluetoothProxy final : public Component {
   std::array<BluetoothConnection *, BLUETOOTH_PROXY_MAX_CONNECTIONS> connections_{};
 #endif
   ble_device_base::BLEHub *hub_{nullptr};
+  // Group 3: 4-byte types; paired with hub_ so the 8-aligned messages below
+  // start on an even word, closing two alignment holes.
+  uint32_t last_advertisement_flush_time_{0};
 
   // BLE advertisement batching
   api::BluetoothLERawAdvertisementsResponse response_;
 
-  // Group 3: 4-byte types
-  uint32_t last_advertisement_flush_time_{0};
-
   // Pre-allocated response message - always ready to send
   api::BluetoothConnectionsFreeResponse connections_free_response_;