diff --git a/ChangeLog b/ChangeLog
index 23d91f41b1..9b72f6e005 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,6 @@
-Wed Jun 23 06:42:08 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jun 23 06:44:05 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (fchown): need to check.  [ruby-core:30818]
 
 	* io.c (argf_next_argv): check for setting owner/group.
 
diff --git a/configure.in b/configure.in
index 1c8233dae1..a16a3d65b3 100644
--- a/configure.in
+++ b/configure.in
@@ -1136,7 +1136,7 @@ else
 fi
 AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot getcwd eaccess\
 	      truncate ftruncate chsize times utimes utimensat fcntl lockf lstat\
-	      link symlink readlink readdir_r fsync fdatasync\
+	      link symlink readlink readdir_r fsync fdatasync fchown\
 	      setitimer setruid seteuid setreuid setresuid setproctitle socketpair\
 	      setrgid setegid setregid setresgid issetugid pause lchown lchmod\
 	      getpgrp setpgrp getpgid setpgid initgroups getgroups setgroups\