PeePaw Jerry gets a new name

Jayden and I were playing legos this afternoon. I was attempting to build the boat that he picked out for me to build and he was building a car. Out of the blue, he tells me, "I don't called him PeePaw Jerry anymore. I call him Oliver. "
I am not sure where this came from-we were not even talking about PeePaw.
But so you all know, his name is now Oliver.
I wonder what Dad would think of his new name?