A Small White Lie

I'm usually a stickler for honesty in my relationships, but there was this one time I couldn't resist telling a small white lie. My husband's deployment has given me the chance to explore and date casually again, but things aren't exclusive yet. One of these casual dates turned out to be a really nice guy at a bar, we hit it off, and I mentioned my age as being younger than what it is, I'm actually in my late twenties, but I said I was in my mid-twenties. The lie felt like such an insignificant thing in the grand scheme of things, but now I feel guilty for even mentioning something that isn't true about myself. It's silly because he probably wouldn't have noticed the difference anyway, but it still doesn't sit well with me.