correction to I-129F petition for fiancee

[totolin]

I have a question regarding to a correction to the I-129F form. My fiancee have always celebrated her birthday on 07/05, however for some reason the birthday on her official document is 07/19. I was reminded of this fact only after i have filed the I-129F form. Is there any way to correct this, and, if i do, would this delay the process of my I-129F application? thanks