MIL annoying me

So I feel like I'm kind of being a brat but I can't help it. My mother in law made me a banner with my daughters name on it for my baby shower and it was so sweet. But.. She wants me to hang it in the nursery too. She just called me and said she wants to come over tonight to help me hang it. I really don't want to hang it in the nursery. I already have her name in big letters on one wall and a small sign with her name on another wall. I think it's kind of rude that she is pushing this on me. This is my first baby and I just want the nursery the way I want it. What should I do? Here's some pics.