diff --git a/modules/tools/editorconfig/config.el b/modules/tools/editorconfig/config.el
index 82d4966f0..ab0892ed4 100644
--- a/modules/tools/editorconfig/config.el
+++ b/modules/tools/editorconfig/config.el
@@ -55,5 +55,12 @@ extension, try to guess one."
     (delq (assq mode editorconfig-indentation-alist)
           editorconfig-indentation-alist))
 
+  (defun +editorconfig|disable-trim-whitespace-in-read-only-buffers (props)
+    "`delete-trailing-whitespace' can cause disruptive read-only errors. Prevent
+it from being added to read-only buffers."
+    (when (and buffer-read-only (gethash 'trim_trailing_whitespace props))
+      (remove-hook 'write-file-functions #'delete-trailing-whitespace :local)))
+  (add-hook 'editorconfig-custom-hooks #'+editorconfig|disable-trim-whitespace-in-read-only-buffers)
+
   ;;
   (editorconfig-mode +1))