Compiling the following module (with ghc) fails with error message "parse error (possibly incorrect indentation)", pointing to the let statement. The error goes away when I indent the lines marked "--*". But I don't understand how what I've written could be ambiguous. If I am inside a parenthesized expression, then I can't possibly start another let-clause. The fact that the compiler won't acknowledge this fact ends up causing a lot of my code to be squished up against the right margin when it seems like it shouldn't have to be. module Main where main :: IO () main = do let a = (map (\x-> x+1) --* [0..9]) --* print a return () Is there a reason for this behavior or is it just a shortcoming of the compiler? Frederik