AHK IfWinTitle not working

AHK IfWinTitle not working

I want:
z::6
x::7
c::8
but only if I'm playing Oblivion (window name: Oblivion)
But right now, no matter how I code it, it always applies to other windows
too, not just Oblivion. So I have to click "Suspend Hotkeys" every time I
alt-tab to Chrome so I don't accidentally type 6 7 8 instead of z x c.
It's really annoying. I've have tried so many things, I'm not even going
to bother posting the code.
Please don't tell me to RTFM or search online because I have for many
months already ;)