Fixed incorrect variable in creator generation.
Fixed incorrect variable in creator generation.

oreillymedia/HTMLBook,gitenberg-dev/HTMLBook,oreillymedia/HTMLBook,macmillanpublishers/HTMLBook,wastemobile/HTMLBook,gitenberg-dev/HTMLBook,macmillanpublishers/HTMLBook,mushroomgithub/HTMLBook,mushroomgithub/HTMLBook,oreillymedia/HTMLBook,macmillanpublishers/HTMLBook,gitenberg-dev/HTMLBook,wastemobile/HTMLBook,mushroomgithub/HTMLBook