diff --git a/lib/buffer.js b/lib/buffer.js
index 6787881..6b5fb20 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -19,14 +19,4 @@ Buffer.prototype.concat = function(other) {
   this.copy(buf, 0, 0);
   other.copy(buf, len, 0);
   return buf;
-};
-
-// patch if not v0.2 of node.js and Buffer.isBuffer fails for SlowBuffer
-if (process.version.indexOf("v0.2") == -1) {
-    var SlowBuffer = process.binding('buffer').SlowBuffer;
-    if (!Buffer.isBuffer(new SlowBuffer(10))) {
-        Buffer.isBuffer = function (b) {
-            return (b instanceof Buffer) || (b instanceof SlowBuffer);
-        };
-    }
-}
\ No newline at end of file
+};
\ No newline at end of file