diff --git a/modules/lang/elm/README.org b/modules/lang/elm/README.org
index 873ed3901..0405df08b 100644
--- a/modules/lang/elm/README.org
+++ b/modules/lang/elm/README.org
@@ -43,6 +43,12 @@ This module adds [[https://elm-lang.org/][Elm]] support to Doom Emacs.
 🔨 This module has no usage documentation yet. [[doom-contrib-module:][Write some?]]
 #+end_quote
 
+** formatter
+By enabling [[doom-module::editor format]], [[doom-package:apheleia]] will be
+used to format the current buffer.
+
+Enable [[doom-module::editor format +onsave]] to format the buffer on save.
+
 * TODO Configuration
 #+begin_quote
 🔨 This module has no configuration documentation yet. [[doom-contrib-module:][Write some?]]