From 8b98ed16e959b172a6364525cbd285786c5dff8f Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Sat, 27 Sep 2025 01:52:17 -0500
Subject: [PATCH] error

---
 esphome/components/esphome/ota/ota_esphome.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/esphome/components/esphome/ota/ota_esphome.cpp b/esphome/components/esphome/ota/ota_esphome.cpp
index 664c05f3b1..caa526ff91 100644
--- a/esphome/components/esphome/ota/ota_esphome.cpp
+++ b/esphome/components/esphome/ota/ota_esphome.cpp
@@ -789,6 +789,10 @@ size_t ESPHomeOTAComponent::get_auth_hex_size_() const {
 #endif
 #ifdef USE_OTA_MD5
   return MD5_HEX_SIZE;
+#else
+#ifndef USE_OTA_SHA256
+#error "Either USE_OTA_MD5 or USE_OTA_SHA256 must be defined when USE_OTA_PASSWORD is enabled"
+#endif
 #endif
 }