diff --git a/emacs.d/org-roam-templates/main.el b/emacs.d/org-roam-templates/main.el
index f5c2db4..add0b9b 100644
--- a/emacs.d/org-roam-templates/main.el
+++ b/emacs.d/org-roam-templates/main.el
@@ -1,6 +1,17 @@
 ;; -*- mode: emacs-lisp; buffer-read-only: t; -*-
 
 
+;; be paranoid, only open org files in read-only mode.
+;;
+(defun myorg-open-read-only-mode ()
+  "Enable `read-only-mode' for Org mode files."
+  (when (and buffer-file-name
+             (string-match "\\.org\\'" buffer-file-name))
+    (read-only-mode 1)))
+
+(add-hook 'org-mode-hook 'myorg-open-read-only-mode)
+
+
 ;;;; add inactive timestamp to every org-item
 ;; https://stackoverflow.com/a/52815573/5115219
 ;; https://emacs.stackexchange.com/a/45369/29404