diff --git a/lib/buffer-util.js b/lib/buffer-util.js
index 4a6e8e7cd..f7536e28e 100644
--- a/lib/buffer-util.js
+++ b/lib/buffer-util.js
@@ -92,9 +92,9 @@ function toBuffer(data) {
   let buf;
 
   if (data instanceof ArrayBuffer) {
-    buf = Buffer.from(data);
+    buf = new FastBuffer(data);
   } else if (ArrayBuffer.isView(data)) {
-    buf = Buffer.from(data.buffer, data.byteOffset, data.byteLength);
+    buf = new FastBuffer(data.buffer, data.byteOffset, data.byteLength);
   } else {
     buf = Buffer.from(data);
     toBuffer.readOnly = false;