I've got this in an Emacs org-mode code block: #+begin_src haskell :results output doubleSmallNumber4 x = if x > 0 then x else x * 2 #+end_src but when I try to run it (with C-c C-c) I get ... Prelude> doubleSmallNumber4 x = if x > 0 then x else x * 2 "org-babel-haskell-eoe" <interactive>:19:23: error: parse error (possibly incorrect indentation or mismatched brackets) Prelude> <interactive>:20:11: error: parse error (possibly incorrect indentation or mismatched brackets) Prelude> <interactive>:21:5-8: error: parse error on input ‘then’ Prelude> <interactive>:22:5-8: error: parse error on input ‘else’ Prelude> "org-babel-haskell-eoe" ... I can run #+begin_src haskell tripleMe x = x + x + x #+end_src just fine though -- which means I've done something right with my Emacs init. The REPL started is 8.6.3 stack-ghci. I've formatted with the org-mode C-c ' LB