mochiweb make app generates invalid rebar.config?

mochiweb-make-app-wrong-rebar.conf

When trying to make a project created with Mochiweb "make app" I got:

Pulling mochiweb from {git,"git://github.com/mochi/mochiweb.git",[]}
Cloning into mochiweb...
error: pathspec 'origin/' did not match any file(s) known to git.
ERROR: git checkout -q origin/ failed with error: 1
make: *** [all] Error 1

The mochiweb dependency in rebar.conf looked like this:
{git, "git://github.com/mochi/mochiweb.git", ""}}]}.

It works if I changed it to:
{git,"git://github.com/mochi/mochiweb","HEAD"}