diff --git a/ChangeLog b/ChangeLog
index 0ddd247a69..42312bce6d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Feb 22 12:56:35 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* Makefile.in (up): cd doesn't need LC_TIME, VCS needs.
+
 Sun Feb 22 10:43:57 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_eval.c (method_missing): should not pop cfp if missing method
diff --git a/Makefile.in b/Makefile.in
index 7549a6e629..6f9c8847e0 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -243,7 +243,7 @@ ext/extinit.$(OBJEXT): ext/extinit.c $(SETUP)
 	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c ext/extinit.c
 
 up::
-	@LC_TIME=C cd "$(srcdir)" && $(VCSUP)
+	@cd "$(srcdir)" && LC_TIME=C exec $(VCSUP)
 
 update-rubyspec: 
 	@if [ -d $(srcdir)/spec/mspec ]; then \