The gasoline won't burn? (SOLVEDLOL)

[Lorkas]

It's in the beginning of Penumbra Black Plague.

So in the messhall, the gasoline won't catch on fire when I throw a flare on it. I've tried everything but nothing seems to work D:

EDIT: Yeah nevermind some dude named Bek helped me out

[Bek]

Spoiler:

Spoiler below!

You have to move the barrel over by the faulty switch that sparks, flip the switch and the barrel ignites

[Lorkas]

Thanks Bek, now I know.