diff --git a/lib/memHandler.js b/lib/memHandler.js
index 29cd2ee..65266b6 100644
--- a/lib/memHandler.js
+++ b/lib/memHandler.js
@@ -13,7 +13,7 @@ module.exports = (options, fieldname, filename) => {
   let fileSize = 0; // eslint-disable-line
   let hash = crypto.createHash('md5');
 
-  const getBuffer = () => Buffer.concat(buffers);
+  const getBuffer = () => Buffer.concat(buffers, fileSize);
   const emptyFunc = () => '';
 
   return {