diff --git a/examples/protocols/http_server/file_serving/main/upload_script.html b/examples/protocols/http_server/file_serving/main/upload_script.html
index 5513ee89b153..b88630e81545 100644
--- a/examples/protocols/http_server/file_serving/main/upload_script.html
+++ b/examples/protocols/http_server/file_serving/main/upload_script.html
@@ -49,8 +49,8 @@ <h2>ESP32 File Server</h2>
         alert("File path on server cannot have spaces!");
     } else if (filePath[filePath.length-1] == '/') {
         alert("File name not specified after path!");
-    } else if (fileInput[0].size > 200*1024) {
-        alert("File size must be less than 200KB!");
+    } else if (fileInput[0].size > MAX_FILE_SIZE) {
+        alert("File size must be less than "+MAX_FILE_SIZE_STR+"!");
     } else {
         document.getElementById("newfile").disabled = true;
         document.getElementById("filepath").disabled = true;