I have a quote that has a misplaced "to":

... they will put you to back to sleep ...

It seems like I'm stuck between a rock and a hard place. I can either:

* Just delete the mistaken "to" (then I would be deliberately misquoting them)
* Put [sic] next to it (which looks unbelievably pedantic, especially since they write better than I do)

Is there a way around this?