diff --git a/lib/buffer.js b/lib/buffer.js
index 3f47677dd56469..6ca079223723fc 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -493,12 +493,12 @@ function slowToString(encoding, start, end) {
 }
 
 
-Buffer.prototype.toString = function() {
+Buffer.prototype.toString = function(encoding, start, end) {
   let result;
   if (arguments.length === 0) {
     result = this.utf8Slice(0, this.length);
   } else {
-    result = slowToString.apply(this, arguments);
+    result = slowToString.call(this, encoding, start, end);
   }
   if (result === undefined)
     throw new Error('"toString()" failed');