clutch pedal stop/sensor - which way up please!

[s4seeker]

Guys
Just fitted a new clutch pedal after the old one burst.
Finished up the job and now just need to replace this plastic stop that attaches to pedal.
Trouble is when the pedal broke this plastic bit broke and landed in footwell so i dont know which way up it goes.
Any chance of someone having a quick look and letting me know
thank you very much
There is a wide end and a thinner end just need to know what goes top and what goes bottom.
thanks again
paul