diff --git a/ChangeLog b/ChangeLog
index 07853e6d9c..332d703609 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Oct 28 09:19:40 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (RUNRUBY): now ruby requires something from
+	  gem_prelude, so need to set library path.
+
 Mon Oct 27 22:29:11 2008  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
 
 	* vm_insnhelper.c (vm_yield_setup_args): supports optional parameters.
diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index 583c1910a5..20763633dd 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -214,7 +214,7 @@ MINIRUBY = $(RUBY) -I$(MAKEDIR) -rfake
 RUNRUBY = $(MINIRUBY)
 !else
 MINIRUBY = .\miniruby$(EXEEXT) -I$(srcdir)/lib
-RUNRUBY = .\$(PROGRAM) -I"$(EXTOUT)/$(arch)"
+RUNRUBY = .\$(PROGRAM) -I$(srcdir)/lib -I"$(EXTOUT)/$(arch)"
 !endif
 MINIRUBY = $(MINIRUBY) $(MINIRUBYOPT)
 RUNRUBY = $(RUNRUBY) "$(srcdir)/runruby.rb" --extout="$(EXTOUT)" --