It must be obvious that the airports that you were flying at were not in the US. I would just leave it the same and explain how things were done differently over there.
If it really bugs you, make a journal entry to correct it. I have had a discrepency in my logs since log #1 where ASEL+ASES+AMEL = 2.2 more than my TT. I finally found it and made a correction entry in my current log, #3, with a 0.6 addition to my TT and a 1.6 reduction to my AMEL which come to find out were mistakes from flight instructors and examiners in the past. I put in a quick explanation and cited the pages with ending dates in Log #1 where you could find the errors. In Log #1 I cricled the errors, but left the numbers as they were. Don't know if that was right or wrong, but it is nice and neat and makes my #'s add up.