Mommy, where is your ammi?

It was just to cute and I had to share.
The kids and I went down to Florida for the weekend. My husband was down in Boca Raton at training for his company and my sister and her husband had just welcomed thier first child. So on the way down I'm on the phone with my husband and Tali pipes up in the back. "Mommy? Where is your ammi?" I'm thinking, ammunition, ammulet... no she wouldn't know about those... is she saing Auntie?
"Where is what?"
"Your ammi."
"My what?"
"Your ammi."
"My ammi..." then I had to laugh. My husband thought it was funny to.
I couldn't figure out how to explain this to her, I mean if I said "it's not your ammi it's Miami," she would hear "It's not your ammi, it's my ammi." I just couldn't get it across, and she can't read so spelling didn't help.
We reached my husband and then met my sister and her husband. He had to show them the cute thing Tali was doing. "Tali where are we?" "We're in Mommy's ammi."
Bless her, can I just keep her this way?