diff --git a/ChangeLog b/ChangeLog
index 17d581e168..a5e6bc2aa4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Jun 23 13:45:30 2003  Tanaka Akira  <akr@m17n.org>
+
+	* time.c (time_arg): initialize v[6] even when argc is 10 to
+	  avoid valgrind error.
+
 Sat Jun 21 23:15:08 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* eval.c (proc_invoke): should not propagate distination tag if
diff --git a/time.c b/time.c
index 7348906cdb..34b909c16a 100644
--- a/time.c
+++ b/time.c
@@ -249,6 +249,7 @@ time_arg(argc, argv, tm, usec)
 	v[3] = argv[2];
 	v[4] = argv[1];
 	v[5] = argv[0];
+	v[6] = Qnil;
 	tm->tm_isdst = RTEST(argv[8]) ? 1 : 0;
     }
     else {