Depends how far a unit of insulin would reduce your BG by, I always think. If 1u wipes off 3.0 on your meter, and your BG is 10, then it's worth it.
If mine was 8, I could take 0.5u and still be OK to go to bed.
If you can do it and still have a reasonable 'safety net' then yes, correct it, as long as these are odd occasions.
However if that is always the case, then yes, you do need to look at your basal.
Or is there a possibility that your carb ratio for the evening meal needs adjustment?