diff --git a/esphome/components/web_server_base/web_server_base.cpp b/esphome/components/web_server_base/web_server_base.cpp
index 7134dc1f3e..3e1baf34ba 100644
--- a/esphome/components/web_server_base/web_server_base.cpp
+++ b/esphome/components/web_server_base/web_server_base.cpp
@@ -5,7 +5,7 @@ namespace esphome::web_server_base {
 
 WebServerBase *global_web_server_base = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-void __attribute__((flatten)) WebServerBase::add_handler(AsyncWebHandler *handler) {
+void WebServerBase::add_handler(AsyncWebHandler *handler) {
 #ifdef USE_WEBSERVER_AUTH
   if (!credentials_.username.empty()) {
     handler = new internal::AuthMiddlewareHandler(handler, &credentials_);
diff --git a/esphome/components/web_server_idf/web_server_idf.cpp b/esphome/components/web_server_idf/web_server_idf.cpp
index d6db3cd652..38ccfccb76 100644
--- a/esphome/components/web_server_idf/web_server_idf.cpp
+++ b/esphome/components/web_server_idf/web_server_idf.cpp
@@ -448,9 +448,8 @@ void AsyncWebServerResponse::addHeader(const char *name, const char *value) {
 void AsyncResponseStream::print(float value) {
   // Use stack buffer to avoid temporary string allocation
   // Size: sign (1) + digits (10) + decimal (1) + precision (6) + exponent (5) + null (1) = 24, use 32 for safety
-  constexpr size_t float_buf_size = 32;
-  char buf[float_buf_size];
-  int len = snprintf(buf, float_buf_size, "%f", value);
+  char buf[32];
+  int len = snprintf(buf, sizeof(buf), "%f", value);
   this->content_.append(buf, len);
 }