diff --git a/ChangeLog b/ChangeLog
index db787712d8..e7c519d23c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Jan  2 23:47:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (install_recursive, bin-comm): split mere
+	  string not path name.  [ruby-core:40462] [Bug #5492]
+
 Mon Jan  2 23:41:57 2012  Tajima Akil <artonx@yahoo.co.jp>
 
 	* win32/Makefile.sub (CONFIG_H): have stdint.h if VC2010.
diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index cec8c9f132..8179f9f651 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -239,7 +239,7 @@ def install_recursive(srcdir, dest, options = {})
     if dir
       makedirs(d)
     else
-      makedirs(File.dirname(d))
+      makedirs(d[/.*(?=\/)/m])
       if block_given?
         yield src, d, opts
       else
@@ -441,7 +441,7 @@ install?(:local, :comm, :bin, :'bin-comm') do
     trans = proc {|base| base}
   end
   install_recursive(File.join(srcdir, "bin"), bindir) do |src, cmd|
-    cmd = File.join(File.dirname(cmd), RbConfig.expand(trans[File.basename(cmd)]))
+    cmd = cmd.sub(/[^\/]*\z/m) {|n| RbConfig.expand(trans[n])}
 
     shebang = ''
     body = ''
diff --git a/version.h b/version.h
index b629db1fee..619f7e43db 100644
--- a/version.h
+++ b/version.h
@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.3"
-#define RUBY_PATCHLEVEL 15
+#define RUBY_PATCHLEVEL 16
 
 #define RUBY_RELEASE_DATE "2012-01-03"
 #define RUBY_RELEASE_YEAR 2012