diff --git a/esphome/components/esp32_ble/ble.cpp b/esphome/components/esp32_ble/ble.cpp
index 41e4ddc930..83c68f7843 100644
--- a/esphome/components/esp32_ble/ble.cpp
+++ b/esphome/components/esp32_ble/ble.cpp
@@ -364,7 +364,7 @@ void ESP32BLE::loop() {
 
 template<typename... Args> void enqueue_ble_event(Args... args) {
   if (global_ble->ble_events_.size() >= MAX_BLE_QUEUE_SIZE) {
-    ESP_LOGD(TAG, "BLE event queue full (%d), dropping event", MAX_BLE_QUEUE_SIZE);
+    ESP_LOGD(TAG, "BLE event queue full (%zu), dropping event", MAX_BLE_QUEUE_SIZE);
     return;
   }
 
diff --git a/esphome/components/esp32_ble/ble_event.h b/esphome/components/esp32_ble/ble_event.h
index af70d2f899..f51095effd 100644
--- a/esphome/components/esp32_ble/ble_event.h
+++ b/esphome/components/esp32_ble/ble_event.h
@@ -60,8 +60,6 @@ class BLEEvent {
     GATTS,
   };
 
-  BLEEvent() = default;
-
   // Constructor for GAP events - no external allocations needed
   BLEEvent(esp_gap_ble_cb_event_t e, esp_ble_gap_cb_param_t *p) {
     this->type_ = GAP;