diff --git a/ChangeLog b/ChangeLog
index e19a543bca..28b386a95e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Apr 21 10:06:26 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* time.c: should include <errno.h> to refer errno.
+
 Mon Apr 21 09:58:04 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* time.c (rb_strftime): check errno to detect strftime(3)'s error.
diff --git a/time.c b/time.c
index ba4c69ef0a..a84c6f3d90 100644
--- a/time.c
+++ b/time.c
@@ -12,6 +12,7 @@
 #include "ruby/ruby.h"
 #include <sys/types.h>
 #include <time.h>
+#include <errno.h>
 #include "ruby/encoding.h"
 
 #ifdef HAVE_UNISTD_H