diff --git a/ChangeLog b/ChangeLog
index b808200822..c41f0f4038 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon May 10 06:59:19 2010  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* common.mk (rdoc): rdoc should depend main. Moreover when XRUBY
+	  is miniruby, it can run after miniruby is built.
+
 Mon May 10 03:36:56 2010  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* vm_eval.c (eval_string_with_cref): propagative filename and line_no
diff --git a/common.mk b/common.mk
index ce7434f0fb..bfa9083eb2 100644
--- a/common.mk
+++ b/common.mk
@@ -350,7 +350,7 @@ do-install-doc: $(PROGRAM)
 post-install-doc::
 	@$(NULLCMD)
 
-rdoc: PHONY
+rdoc: PHONY main
 	@echo Generating RDoc documentation
 	$(XRUBY) "$(srcdir)/bin/rdoc" --no-force-update --all --ri --op "$(RDOCOUT)" $(RDOCFLAGS) "$(srcdir)"
 nodoc: PHONY