diff --git a/ChangeLog b/ChangeLog
index 1190b3f89b..53c2e16862 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Dec 31 14:20:11 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* process.c (save_redirect_fd): consider EBADF that the fd is not used.
+	  [ruby-dev:39938]
+
 Thu Dec 31 06:03:48 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/socket/raddrinfo.c (addrinfo_type): typed.
diff --git a/process.c b/process.c
index 081e927bab..07ad06e178 100644
--- a/process.c
+++ b/process.c
@@ -1863,6 +1863,8 @@ save_redirect_fd(int fd, VALUE save, char *errmsg, size_t errmsg_buflen)
         VALUE newary;
         int save_fd = redirect_dup(fd);
         if (save_fd == -1) {
+            if (errno == EBADF)
+                return 0;
             ERRMSG("dup");
             return -1;
         }