diff --git a/lib/internal/streams/BufferList.js b/lib/internal/streams/BufferList.js
index 76da94bc83d977..9d3badf5b378bd 100644
--- a/lib/internal/streams/BufferList.js
+++ b/lib/internal/streams/BufferList.js
@@ -58,8 +58,6 @@ BufferList.prototype.join = function(s) {
 BufferList.prototype.concat = function(n) {
   if (this.length === 0)
     return Buffer.alloc(0);
-  if (this.length === 1)
-    return this.head.data;
   const ret = Buffer.allocUnsafe(n >>> 0);
   var p = this.head;
   var i = 0;