diff --git a/ChangeLog b/ChangeLog
index d0f44fea03..9bd3f953ca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Jul 17 11:47:35 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* st.c: still need to include config.h on some platforms.
+
 Sat Jul 15 01:09:22 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* st.c (malloc): use xmalloc/xcalloc instead of plain
diff --git a/st.c b/st.c
index 24fde6eb27..0ace74e235 100644
--- a/st.c
+++ b/st.c
@@ -2,6 +2,7 @@
 
 /* static	char	sccsid[] = "@(#) st.c 5.1 89/12/14 Crucible"; */
 
+#include "config.h"
 #include <stdio.h>
 #ifdef HAVE_STDLIB_H
 #include <stdlib.h>