diff --git a/collects/tests/addrhack.c b/collects/tests/addrhack.c
deleted file mode 100644
index 99c5c9143c..0000000000
--- a/collects/tests/addrhack.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
-Matthew writes:
-
-This file, when loaded, defines:
-
-  object->address : value -> exact integer in [0,2^32-1]
-  address->object : exact integer in [0,2^32-1] -> value
-
-Obviously, address->object is not safe.
-
-To Compile:
-
-  mzc --cc addrhack.c
-  mzc --ld addrhack.so addrhack.o
-
-*/
-#include "escheme.h"
-
-Scheme_Object *object_to_address(int c, Scheme_Object **a)
-{
-  return scheme_make_integer_value_from_unsigned((unsigned long)a[0]);
-}
-
-Scheme_Object *address_to_object(int c, Scheme_Object **a)
-{
-  unsigned long v;
-
-  if (!scheme_get_unsigned_int_val(a[0], &v))
-    scheme_signal_error("bad address");
-
-  return (Scheme_Object *)v;
-}
-
-Scheme_Object *scheme_reload(Scheme_Env *env)
-{
-  scheme_add_global("object->address", 
-                    scheme_make_prim_w_arity(object_to_address,
-                                             "object->address",
-                                             1, 1),
-                    env);
-  scheme_add_global("address->object",
-                    scheme_make_prim_w_arity(address_to_object, 
-                                             "address->object",
-                                             1, 1),
-                    env);
-
-  return scheme_void;
-}
-
-Scheme_Object *scheme_initialize(Scheme_Env *env)
-{
-  return scheme_reload(env);
-}
-
-Scheme_Object *scheme_module_name() {
-  return scheme_make_string("addrhack");
-}