Babys middle name

Petra

So my SO would like our daughter to have the same middle name as his late aunt. Which im totally fine with except, i dont care for the spelling. Its spelled Jo-von. I dont like the hyphen. I feel like it makes it look weird. Am i being selfish if i ask him to spell it w out the hyphen? Would it still be named after her if we did JoVon or Jo'von? Or does it need to be spelled exactly like hers?