1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/gnus/nnfolder.el b/lisp/gnus/nnfolder.el
index 961f124a614..20cdb3da273 100644
--- a/lisp/gnus/nnfolder.el
+++ b/lisp/gnus/nnfolder.el
@@ -875,6 +875,7 @@ deleted.  Point is left where the deleted region was."
                          nnfolder-file-coding-system))
                     (nnheader-find-file-noselect file t)))))
     (mm-enable-multibyte) ;; Use multibyte buffer for future copying.
+    (buffer-disable-undo)
     (if (equal (cadr (assoc group nnfolder-scantime-alist))
                (nth 5 (file-attributes file)))
         ;; This looks up-to-date, so we don't do any scanning.
@@ -901,7 +902,6 @@ deleted.  Point is left where the deleted region was."
               maxid start end newscantime
               novbuf articles newnum
               buffer-read-only)
-          (buffer-disable-undo)
           (setq maxid (cdr active))
 
           (unless (or gnus-nov-is-evil nnfolder-nov-is-evil