diff --git a/modules/lang/rst/config.el b/modules/lang/rst/config.el
index 34ea7a0b5..83c74b51f 100644
--- a/modules/lang/rst/config.el
+++ b/modules/lang/rst/config.el
@@ -1,7 +1,9 @@
 ;;; lang/rst/config.el -*- lexical-binding: t; -*-
 
 (use-package! sphinx-mode
-  :hook (rst-mode . sphinx-mode))
+  :hook (rst-mode . sphinx-mode)
+  :config
+  (set-formatter! 'rstfmt '("rstfmt") :modes '(rst-mode)))
 
 (use-package! rst
   :defer t
diff --git a/modules/lang/rst/doctor.el b/modules/lang/rst/doctor.el
new file mode 100644
index 000000000..b6b376202
--- /dev/null
+++ b/modules/lang/rst/doctor.el
@@ -0,0 +1,5 @@
+;;; lang/rst/doctor.el -*- lexical-binding: t; -*-
+
+(when (modulep! :editor format)
+  (unless (executable-find "rstfmt")
+    (warn! "Couldn't find rstfmt. Formatting will be disabled.")))