--- Site/1.8/rubygems/commands/cleanup_command.rb.dist	2008-12-23 11:44:35.000000000 -0600
+++ Site/1.8/rubygems/commands/cleanup_command.rb	2008-12-23 11:42:43.000000000 -0600
@@ -71,6 +71,7 @@
         options[:args] = [spec.name]
         options[:version] = "= #{spec.version}"
         options[:executables] = false
+        options[:install_dir] = File.dirname(File.dirname(spec.loaded_from)) if spec.loaded_from

         uninstaller = Gem::Uninstaller.new spec.name, options