From 7513db9dcd70dde147181f56b711b0f42737a54c Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Thu, 26 Mar 2026 15:50:10 -1000
Subject: [PATCH] Fix clang-tidy: protected method needs trailing underscore

---
 esphome/components/fan/fan.h        | 2 +-
 esphome/components/fan/fan_traits.h | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/esphome/components/fan/fan.h b/esphome/components/fan/fan.h
index 26b34d2bc6..d5763edf2f 100644
--- a/esphome/components/fan/fan.h
+++ b/esphome/components/fan/fan.h
@@ -178,7 +178,7 @@ class Fan : public EntityBase {
   /// Wire the Fan-owned preset modes pointer into the given traits object.
   void wire_preset_modes_(FanTraits &traits) {
     if (this->supported_preset_modes_) {
-      traits.set_supported_preset_modes(this->supported_preset_modes_);
+      traits.set_supported_preset_modes_(this->supported_preset_modes_);
     }
   }
 
diff --git a/esphome/components/fan/fan_traits.h b/esphome/components/fan/fan_traits.h
index 05810ceea4..78c215dc8c 100644
--- a/esphome/components/fan/fan_traits.h
+++ b/esphome/components/fan/fan_traits.h
@@ -77,7 +77,9 @@ class FanTraits {
 
  protected:
   /// Set the preset modes pointer (only Fan::wire_preset_modes_() should call this).
-  void set_supported_preset_modes(const std::vector<const char *> *preset_modes) { this->preset_modes_ = preset_modes; }
+  void set_supported_preset_modes_(const std::vector<const char *> *preset_modes) {
+    this->preset_modes_ = preset_modes;
+  }
 
   bool oscillation_{false};
   bool speed_{false};