diff --git a/ChangeLog b/ChangeLog
index 1a5394c625..b98df5ae13 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Dec 16 23:29:20 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* tool/rbinstall.rb (bin-comm): use transformed name.
+	  [ruby-dev:42777]
+
 Thu Dec 16 21:52:07 2010  Tanaka Akira  <akr@fsij.org>
 
 	* io.c: parenthesize macro arguments.
diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index bfb65dcbcc..fde24c0ecd 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -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|
-    name = RbConfig.expand(trans[File.basename(src)])
+    cmd = File.join(File.dirname(cmd), RbConfig.expand(trans[File.basename(cmd)]))
 
     shebang = ''
     body = ''