diff --git a/CHANGES.md b/CHANGES.md
index 0f2a70ab84..58e58e4d3a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -129,6 +129,11 @@ profile. This started with version 0.26.0.
      M.foo)
     ```
 
+### Emacs mode
+
+- Add `neocaml-mode` support to `ocamlformat-before-save`
+  (#2787, @bbatsov)
+
 ## 0.28.1
 
 ### Highlight
diff --git a/emacs/ocamlformat.el b/emacs/ocamlformat.el
index 47c0c0a9c3..7c652acdf8 100644
--- a/emacs/ocamlformat.el
+++ b/emacs/ocamlformat.el
@@ -101,7 +101,8 @@ nil (default)."
 \(add-hook \\='before-save-hook \\='ocamlformat-before-save)."
   (interactive)
   (when
-      (memq major-mode '(tuareg-mode caml-mode ocaml-ts-mode ocamli-ts-mode))
+      (memq major-mode '(tuareg-mode caml-mode ocaml-ts-mode ocamli-ts-mode
+                          neocaml-mode neocaml-interface-mode))
     (ocamlformat)))
 
 (defun ocamlformat--goto-line (line)