Add Index to unindexed page?

Hello,

There is a single page that is unindexed in a group of baptism images that are otherwise all indexed.

https://www.familysearch.org/ark:/61903/3:1:939V-M34J-B?view=index

It seems clear that it was an oversight. Is there a way to get an empty index added to this page so that the records can be added, or at least report it unindexed.

Thanks,

Judith