I think that's just fine. If it's a true weakpoint, then you could add in some extra work for your chest. I would say that most people just feel like their chest needs to look like Arnold's to be balanced, but that is not the case. Same with arms. Why does everyone think their biceps are lagging behind? Such bullshit. No they're not. Your goddamned legs are lagging behind. Okay, end rant, sorry.