Exposed Delta 100 as HP5+

I checked the previous threads and saw instances of just the reverse, but none addressing my circumstance. I usually shoot HP5+, but last weekend I grabbed a camera I don't usually use and exposed everything as if it were HP5+ but when I removed the roll it was Delta 100! I use Kodak TMax to develop. I'm guessing I'm going to be looking at some really thin negatives. Any ideas I could use to compensate for this error in the development and/or printing stages? Thanks.

In the words of Salt n Peppa, push it.

It is within the film latitude. Process it normally and compensate during printing.

The negs would look thin and lack contrast, so I would give it 25% more time in the developer.