######剑桥高阶英汉双解词典
>faux pas
noun C
/ˌfəʊˈpɑː/ US /ˌfoʊ-/ (plural faux pas)
words or behaviour that are a social mistake or not polite 失言;失礼
» I made some remark about his wife’s family then realized I’d made a serious faux pas.我谈论了几句他妻子的娘家,接着就意识到这很失礼。
Both are correct. I've asked this question to a native english speaker, and she said ' The "some" here indicates that you are going to make some kind of remark, a certain remark'. I think her answer was clear and helpful.