[Hat] Bug in hat-trans?

Hello Hatters, I have a problem with the following program: module Bug where f = \ ~(a,b) -> 1 This is what I get: $ hmake -hat -nhc98 Bug.hs hat-trans Bug.hs Wrote TBug.hs nhc98 -c -package hat -o TBug.o TBug.hs ====== Errors after type inference/checking: Type error type clash between Hat.R and Prelude.-> when trying to apply function at 13:7 to its 4th argument at 14:10. This is with Hat 2.00. Cheers, /M