Insert in googlebase_item creating error

I'm getting the following error when updating an item (which I had deleted from Google Base):
warning: Missing argument 1 for googlebase_item::insert(), called in googlebase/includes/googlebase_item.inc on line 55 and defined in googlebase/includes/googlebase_item.inc on line 26.

I created the following patch on line 55 of includes/googlebase_item.inc:
return $this->insert($this->node);

replacing:
return $this->insert();

With some limited testing that appears to work. Thanks for a great module by the way.