That would be what I would do. If your stitch count is on, you probably picked up a stitch somewhere. Adding this in would probably make a mess. I'd secure it where it is and call it good. But I am the sort that goes, "eh, it's a little thing not worth the headache of fixing it." If it majorly made the pattern look bad I might frog down to that row, but otherwise I'd probably just leave it.
"The world now has the means to end extreme poverty, we pray we will have the will"
knitncook there, too!
OTN: Laughing Carrots; Jaywaler
FO: Potamus socks; Palindrome