diff --git a/ChangeLog b/ChangeLog
index 949050ece4..ff020234a3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Aug 15 17:39:05 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (parse.{c,h}): creates in the dependency order.
+
 Fri Aug 15 16:59:30 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_core.h (exec_event_hooks): skips RubyVM::FrozenCore.
diff --git a/common.mk b/common.mk
index 66f1342204..d18642cb6b 100644
--- a/common.mk
+++ b/common.mk
@@ -393,10 +393,10 @@ parse.h {$(VPATH)}parse.h: {$(VPATH)}parse.c
 
 {$(srcdir)}.y.c:
 	$(YACC) -d $(YFLAGS) -o y.tab.c $(<:\\=/)
-	sed -e "/^#/s!y\.tab\.h!$(@:.c=.h)!" y.tab.h > $(@:.c=.h).new
-	@$(MV) $(@:.c=.h).new $(@:.c=.h)
 	sed -f $(srcdir)/tool/ytab.sed -e "/^#/s!y\.tab\.c!$@!" y.tab.c > $@.new
 	@$(MV) $@.new $@
+	sed -e "/^#/s!y\.tab\.h!$(@:.c=.h)!" y.tab.h > $(@:.c=.h).new
+	@$(IFCHANGE) $(@:.c=.h) $(@:.c=.h).new
 	@$(RM) y.tab.c y.tab.h
 
 acosh.$(OBJEXT): {$(VPATH)}acosh.c