Quick fix for issue 2471.

R=jkummerow@chromium.org
BUG=v8:2471

Review URL: https://chromiumcodereview.appspot.com/11971036

git-svn-id: https://v8.googlecode.com/svn/trunk@13417 ce2b1a6d-e550-0410-aec6-3dcde31c8c00