diff --git a/ChangeLog b/ChangeLog
index d7e1c7a0ec..31c0b047f6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Fri Aug  9 07:16:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
+
+	* ext/io/console/console.c: delete redefinition of rb_cloexec_open.
+	  This function is always defined by io.c and is declared as non-static
+	  in a header file, so this declaration causes a compilation error.
+
 Fri Aug  9 19:13:54 2013  Koichi Sasada  <ko1@atdot.net>
 
 	* NEWS: update about new methods for Binding.
diff --git a/ext/io/console/console.c b/ext/io/console/console.c
index 2a83f17135..f3379ffd8d 100644
--- a/ext/io/console/console.c
+++ b/ext/io/console/console.c
@@ -668,23 +668,6 @@ console_ioflush(VALUE io)
     return io;
 }
 
-#ifndef HAVE_RB_CLOEXEC_OPEN
-static int
-rb_cloexec_open(const char *pathname, int flags, mode_t mode)
-{
-    int ret;
-#ifdef O_CLOEXEC
-    /* O_CLOEXEC is available since Linux 2.6.23.  Linux 2.6.18 silently ignore it. */
-    flags |= O_CLOEXEC;
-#elif defined O_NOINHERIT
-    flags |= O_NOINHERIT;
-#endif
-    return open(pathname, flags, mode);
-}
-
-#define rb_update_max_fd(fd) (void)(fd)
-#endif
-
 /*
  * call-seq:
  *   IO.console      -> #<File:/dev/tty>