I just got sent the visa application form for Qatar, which I plan to visit in February for a conference. There's a line on the form, right below the one that asks about nationality, asking for a religious affiliation. I'm Jewish (although totally non-observant, as if that matters) and a US citizen. While I have no qualms whatsoever about visiting Qatar and am excited about going there, filling in that line on the visa application just makes me uncomfortable. If I leave it blank, will that cause problems?

I have been to Egypt but can't remember if they asked this question on the visa application. (In case anyone brings this up, yes, I have been to Israel but I asked them to leave the stamp out of my passport.)