Schedule E - list child support payments?

[tazunemono]

I pay my ex-wife $650 per paycheck ($1300/mo) in cash maintenence as pursuant to our divorce decree (she has primary custody of our two children). Do I list this on Schedule E under "domestic support obligations"? Or, do I not check this box?

11 U.S.C. § 507(a)(1).

Thanks!