WB Slippon Leak

I was cleaning the qaud after a muddy ride and noticed when I hopped on it to put it away I felt a little exhaust on my ankle..... after feeling around where the pipe and cannister are rivetted is where it was coming through when I goosed it. Does anyone know if this is normal? To me it looks like it isn''t a tight seal anyway... there is only rivets and no welds for a complete seal.

Air comes between the rivets. They are made like that. Its funny how there isn't any black between the rivets though. But yeah, you're fine dood.