diff --git a/emacs/.config/doom/configuration.org b/emacs/.config/doom/configuration.org
index 3eec03b..37fb493 100644
--- a/emacs/.config/doom/configuration.org
+++ b/emacs/.config/doom/configuration.org
@@ -243,3 +243,14 @@
     (ispell-hunspell-add-multi-dic "en_GB,nl_NL,en_US")
     (setq ispell-dictionary "en_GB,nl_NL,en_US"))
 #+END_SRC
+* Markdown
+** Open mdx files in markdown-mode
+#+BEGIN_SRC emacs-lisp
+   (add-to-list 'auto-mode-alist '("\\.mdx\\'" . markdown-mode))
+#+END_SRC
+* Haskell
+** Auto format Haskell code on save
+#+BEGIN_SRC emacs-lisp
+(custom-set-variables
+ '(haskell-stylish-on-save t))
+#+END_SRC
diff --git a/emacs/.config/doom/init.el b/emacs/.config/doom/init.el
index 3a66467..c0fe125 100644
--- a/emacs/.config/doom/init.el
+++ b/emacs/.config/doom/init.el
@@ -76,6 +76,8 @@
          +lsp)
        ledger            ; an accounting system in Emacs
        markdown          ; writing docs for people to ignore
+       (haskell          ; Haskell support
+        + lsp)
        (org              ; organize your plain life in plain text
         +roam
         +dragndrop       ; drag & drop files/images into org buffers