diff --git a/esphome/components/web_server_idf/web_server_idf.cpp b/esphome/components/web_server_idf/web_server_idf.cpp
index 5eb47bfebf..06c5ab6c47 100644
--- a/esphome/components/web_server_idf/web_server_idf.cpp
+++ b/esphome/components/web_server_idf/web_server_idf.cpp
@@ -123,9 +123,9 @@ void AsyncWebServer::begin() {
   }
   // Default httpd stack is 4096. Increase to accommodate SerializationBuffer's
   // 640-byte stack buffer used by web_server JSON request handlers.
-  constexpr size_t HTTPD_STACK_SIZE = 4096 + 256;
+  constexpr size_t httpd_stack_size = 4096 + 256;
   httpd_config_t config = HTTPD_DEFAULT_CONFIG();
-  config.stack_size = HTTPD_STACK_SIZE;
+  config.stack_size = httpd_stack_size;
   config.server_port = this->port_;
   config.uri_match_fn = [](const char * /*unused*/, const char * /*unused*/, size_t /*unused*/) { return true; };
   // Always enable LRU purging to handle socket exhaustion gracefully.