diff --git a/esphome/components/web_server_idf/web_server_idf.cpp b/esphome/components/web_server_idf/web_server_idf.cpp
index 4034a22586..f18570965b 100644
--- a/esphome/components/web_server_idf/web_server_idf.cpp
+++ b/esphome/components/web_server_idf/web_server_idf.cpp
@@ -921,7 +921,7 @@ esp_err_t AsyncWebServer::handle_multipart_upload_(httpd_req_t *r, const char *c
   });
 
   // Use heap buffer - 1460 bytes is too large for the httpd task stack
-  auto buffer = std::make_unique<char[]>(MULTIPART_CHUNK_SIZE);
+  auto buffer = std::make_unique_for_overwrite<char[]>(MULTIPART_CHUNK_SIZE);
   size_t bytes_since_yield = 0;
 
   for (size_t remaining = r->content_len; remaining > 0;) {