diff --git a/esphome/components/usb_uart/usb_uart.cpp b/esphome/components/usb_uart/usb_uart.cpp
index d3179e14bd..0bd77571ef 100644
--- a/esphome/components/usb_uart/usb_uart.cpp
+++ b/esphome/components/usb_uart/usb_uart.cpp
@@ -209,7 +209,6 @@ bool USBUartChannel::read_array(uint8_t *data, size_t len) {
   this->parent_->start_input(this);
   return status;
 }
-#if defined(USE_ESP8266) || defined(USE_ESP32)
 void USBUartChannel::load_settings(bool dump_config) {
   if (this->parent_ == nullptr || !this->initialised_.load()) {
     return;
@@ -218,13 +217,9 @@ void USBUartChannel::load_settings(bool dump_config) {
 }
 
 void USBUartChannel::load_settings() { this->load_settings(true); }
-#endif
 
 void USBUartComponent::setup() { USBClient::setup(); }
-void USBUartComponent::load_settings(USBUartChannel *channel, bool dump_config) {
-  static_cast<void>(channel);
-  static_cast<void>(dump_config);
-}
+void USBUartComponent::load_settings([[maybe_unused]] USBUartChannel *channel, [[maybe_unused]] bool dump_config) {}
 void USBUartComponent::loop() {
   bool had_work = this->process_usb_events_();
 
diff --git a/esphome/components/usb_uart/usb_uart.h b/esphome/components/usb_uart/usb_uart.h
index 345eec2664..ba9f7db2d2 100644
--- a/esphome/components/usb_uart/usb_uart.h
+++ b/esphome/components/usb_uart/usb_uart.h
@@ -149,10 +149,8 @@ class USBUartChannel : public uart::UARTComponent, public Parented<USBUartCompon
   void set_dummy_receiver(bool dummy_receiver) { this->dummy_receiver_ = dummy_receiver; }
   void set_debug_prefix(const char *prefix) { this->debug_prefix_ = StringRef(prefix); }
   void set_flush_timeout(uint32_t flush_timeout_ms) override { this->flush_timeout_ms_ = flush_timeout_ms; }
-#if defined(USE_ESP8266) || defined(USE_ESP32)
   void load_settings(bool dump_config) override;
   void load_settings() override;
-#endif
 
   /// Register a callback invoked immediately after data is pushed to the input ring buffer.
   /// Called from USBUartComponent::loop() in the main loop context.
@@ -192,7 +190,7 @@ class USBUartComponent : public usb_host::USBClient {
   std::vector<USBUartChannel *> get_channels() { return this->channels_; }
 
   void add_channel(USBUartChannel *channel) { this->channels_.push_back(channel); }
-  virtual void load_settings(USBUartChannel *channel, bool dump_config);
+  virtual void load_settings([[maybe_unused]] USBUartChannel *channel, [[maybe_unused]] bool dump_config);
 
   void start_input(USBUartChannel *channel);
   void start_output(USBUartChannel *channel);