Fake tanner

I’m in my best friends wedding this weekend and using fake tan, that’s always really good. I’m usually fine at putting it on but I guess last night I got rushed and I have a giant streak down the front of my right leg. Usually I’d I screw it up I just wear jeans for a few days until it’s worked out, but this time on Friday I’m wearing a sundress. Does anyone have any advice on how to correct if. I fill like if I try to fill it in, it will only look worse