Your choices are to leave it, fix it without ripping back if it's not too many rows, or rip back the rows.
How many rows back is it? If it's only a few you can use a crochet hook and correct the stitch. In the video section under tips there is a section called fixing mistakes. Look for the video about fixing a stitch without unraveling.
If it's only a row or two you can also tink back which is to unknit stitch by stitch till you're at the mistake and then correctly knit it.
What would I do? I'd probably fix it with a crochet hook, but I've been knitting a few years so it's not scary for me.