Can I ignore a 2017 1099-R dist code R for a roth re-characterization I did in 2017 for tax year 2016 and reported on my 2016 turbo tax return.

403b money to a Roth and then back to my 403b to lower my 2016 income. The amount was slightly higher then what I reported for a gain I assume I did not know about. TT 2017 says file an amended return $11 difference that can not be right?