diff --git a/is-buffer.js b/is-buffer.js
index 977df88..520ed75 100644
--- a/is-buffer.js
+++ b/is-buffer.js
@@ -9,5 +9,5 @@ module.exports = isBuf;
 
 function isBuf(obj) {
   return (global.Buffer && global.Buffer.isBuffer(obj)) ||
-         (global.ArrayBuffer && obj instanceof ArrayBuffer);
+         (global.ArrayBuffer && (obj instanceof ArrayBuffer || ArrayBuffer.isView(obj)));
 }