Hi, The function getMyLine written by me is intended for getting a complete string from the standard input. import IO getMyLine :: IO [Char] getMyLine = do c <- getChar if(c == '\n') then return "" else cs <- getMyLine return [c] However I keep getting the following error: io.hs:14:2: Parse error in pattern Failed, modules loaded: none. I fail to understand what the error is. I tried out various things such as changing the alignment and so on to no avail. The following program, however, compiled successfully though it has the same structure as the previous program. checkd :: IO Bool checkd = do c <- getChar if(c=='d') then return True else return False Prelude> :load ./io.hs [1 of 1] Compiling Main ( io.hs, interpreted ) Ok, modules loaded: Main. *Main> checkd d True