diff --git a/mrbgem.rake b/mrbgem.rake
index 740671132..10864c81c 100644
--- a/mrbgem.rake
+++ b/mrbgem.rake
@@ -1,15 +1,6 @@
 MRuby::Gem::Specification.new('mruby-dir') do |spec|
-  spec.license = 'MIT'
-  spec.authors = [ 'Internet Initiative Japan Inc.' ]
+  spec.license = 'MIT and MIT-like license'
+  spec.authors = [ 'Internet Initiative Japan Inc.', 'Kevlin Henney']
 
   spec.cc.include_paths << "#{build.root}/src"
-  
-  case RUBY_PLATFORM
-  when /mingw|mswin/
-    spec.license = 'MIT and MIT-like license'
-    spec.authors += [ 'Kevlin Henney' ]
-    spec.objs += Dir.glob("#{dir}/src/Win/*.{c,cpp,m,asm,S}").map { |f| 
-      objfile(f.relative_path_from(dir).pathmap("#{build_dir}/%X")) 
-    }
-  end
 end
diff --git a/src/Win/dirent.h b/src/Win/dirent.h
deleted file mode 100644
index a02a0d828..000000000
--- a/src/Win/dirent.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#ifndef DIRENT_INCLUDED
-#define DIRENT_INCLUDED
-
-/*
-
-    Declaration of POSIX directory browsing functions and types for Win32.
-
-    Author:  Kevlin Henney (kevlin@acm.org, kevlin@curbralan.com)
-    History: Created March 1997. Updated June 2003.
-    Rights:  See end of file.
-    
-*/
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-typedef struct DIR DIR;
-
-struct dirent
-{
-    char *d_name;
-};
-
-DIR           *opendir(const char *);
-int           closedir(DIR *);
-struct dirent *readdir(DIR *);
-void          rewinddir(DIR *);
-
-/*
-
-    Copyright Kevlin Henney, 1997, 2003. All rights reserved.
-
-    Permission to use, copy, modify, and distribute this software and its
-    documentation for any purpose is hereby granted without fee, provided
-    that this copyright and permissions notice appear in all copies and
-    derivatives.
-    
-    This software is supplied "as is" without express or implied warranty.
-
-    But that said, if there are any problems please get in touch.
-
-*/
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/src/dir.c b/src/dir.c
index 70a6e01a8..00658debd 100644
--- a/src/dir.c
+++ b/src/dir.c
@@ -16,7 +16,7 @@
   #define PATH_MAX MAX_PATH
  #endif
   #define S_ISDIR(B) ((B)&_S_IFDIR)
-  #include "Win/dirent.h"
+  #include "Win/dirent.c"
   #include <direct.h>
   #define rmdir _rmdir
   #define getcwd _getcwd