diff --git a/pitfall/pitfall/buffer.rkt b/pitfall/pitfall/buffer.rkt
deleted file mode 100644
index a2a56f71..00000000
--- a/pitfall/pitfall/buffer.rkt
+++ /dev/null
@@ -1,25 +0,0 @@
-#lang pitfall/racket
-
-;; nodejs Buffer object = Racket byte string
-
-(define Buffer
-  (class object%
-    (super-new)
-
-    (init-field [bstr #""])
-
-    (define/public (isBuffer x)
-      (is-a? x Buffer))
-
-    (define/public (length)
-      (bytes-length bstr))))
-
-(define isBuffer (generic Buffer isBuffer))
-
-
-(module+ test
-  (require rackunit)
-  (define good-buffer (make-object Buffer #"foo"))
-  (check-true (send-generic good-buffer isBuffer good-buffer))
-  (check-false (send-generic (new Buffer) isBuffer "foo")))
-