diff --git a/emacs/org/+babel-diff.el b/emacs/org/+babel-diff.el
index 3dd5f0d..d6aa40f 100644
--- a/emacs/org/+babel-diff.el
+++ b/emacs/org/+babel-diff.el
@@ -1,3 +1,5 @@
+;;; +org.el -*- lexical-binding: t; -*-
+
 (defun org-babel-execute:diff (body params)
   "Applies diff patches. Use with care.
 See https://emacs.stackexchange.com/questions/63517/org-mode-evaluate-diff-code-block"