diff --git a/ChangeLog b/ChangeLog
index 4cf0ab4819..68586fb26a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Apr  5 18:02:54 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/intern.h (rb_fd_resize): does nothing on Win32.
+
 Sat Apr  4 17:05:15 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* include/ruby/intern.h (RB_NUM_COERCE_FUNCS_NEED_OPID): macro to
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index 2f794ee431..285981b4ae 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -232,6 +232,7 @@ void rb_fd_set(int, rb_fdset_t *);
 #define rb_fd_clr(n, f)		rb_w32_fdclr(n, (f)->fdset)
 #define rb_fd_isset(n, f)	rb_w32_fdisset(n, (f)->fdset)
 #define rb_fd_select(n, rfds, wfds, efds, timeout)	rb_w32_select(n, (rfds) ? ((rb_fdset_t*)rfds)->fdset : NULL, (wfds) ? ((rb_fdset_t*)wfds)->fdset : NULL, (efds) ? ((rb_fdset_t*)efds)->fdset: NULL, timeout)
+#define rb_fd_resize(n, f)	(void)(f)
 
 #define rb_fd_ptr(f)	((f)->fdset)
 #define rb_fd_max(f)	((f)->fdset->fd_count)