diff --git a/README.md b/README.md
index 451d4852..5ee74dbc 100644
--- a/README.md
+++ b/README.md
@@ -121,7 +121,7 @@ formatting.
 | Lua | [luacheck](https://github.com/mpeterv/luacheck) |
 | Mail | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale) |
 | Make | [checkmake](https://github.com/mrtazz/checkmake) |
-| Markdown | [alex](https://github.com/wooorm/alex) !!, [mdl](https://github.com/mivok/markdownlint), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [remark-lint](https://github.com/wooorm/remark-lint) !!, [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
+| Markdown | [alex](https://github.com/wooorm/alex) !!, [mdl](https://github.com/mivok/markdownlint), [prettier](https://github.com/prettier/prettier), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [remark-lint](https://github.com/wooorm/remark-lint) !!, [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
 | MATLAB | [mlint](https://www.mathworks.com/help/matlab/ref/mlint.html) |
 | Nim | [nim check](https://nim-lang.org/docs/nimc.html) !! |
 | nix | [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate) |
diff --git a/autoload/ale/fix/registry.vim b/autoload/ale/fix/registry.vim
index 53df7ccb..4b692404 100644
--- a/autoload/ale/fix/registry.vim
+++ b/autoload/ale/fix/registry.vim
@@ -45,7 +45,7 @@ let s:default_registry = {
 \   },
 \   'prettier': {
 \       'function': 'ale#fixers#prettier#Fix',
-\       'suggested_filetypes': ['javascript', 'typescript', 'json', 'css', 'scss', 'less'],
+\       'suggested_filetypes': ['javascript', 'typescript', 'json', 'css', 'scss', 'less', 'markdown'],
 \       'description': 'Apply prettier to a file.',
 \   },
 \   'prettier_eslint': {
diff --git a/doc/ale-markdown.txt b/doc/ale-markdown.txt
index 3ce9619c..b59f0183 100644
--- a/doc/ale-markdown.txt
+++ b/doc/ale-markdown.txt
@@ -2,6 +2,12 @@
 ALE Markdown Integration                                 *ale-markdown-options*
 
 
+===============================================================================
+prettier                                                *ale-markdown-prettier*
+
+See |ale-javascript-prettier| for information about the available options.
+
+
 ===============================================================================
 write-good                                            *ale-markdown-write-good*
 
diff --git a/doc/ale.txt b/doc/ale.txt
index 25c1abe0..61d6eee1 100644
--- a/doc/ale.txt
+++ b/doc/ale.txt
@@ -127,6 +127,7 @@ CONTENTS                                                         *ale-contents*
     lua...................................|ale-lua-options|
       luacheck............................|ale-lua-luacheck|
     markdown..............................|ale-markdown-options|
+      prettier............................|ale-markdown-prettier|
       write-good..........................|ale-markdown-write-good|
     nroff.................................|ale-nroff-options|
       write-good..........................|ale-nroff-write-good|
@@ -326,7 +327,7 @@ Notes:
 * Lua: `luacheck`
 * Mail: `alex`!!, `proselint`, `vale`
 * Make: `checkmake`
-* Markdown: `alex`!!, `mdl`, `proselint`, `redpen`, `remark-lint`, `vale`, `write-good`
+* Markdown: `alex`!!, `mdl`, `prettier`, `proselint`, `redpen`, `remark-lint`, `vale`, `write-good`
 * MATLAB: `mlint`
 * Nim: `nim check`!!
 * nix: `nix-instantiate`