1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/textmodes/flyspell.el b/lisp/textmodes/flyspell.el
index 35bf8d46100..96862b9c671 100644
--- a/lisp/textmodes/flyspell.el
+++ b/lisp/textmodes/flyspell.el
@@ -1410,6 +1410,7 @@ The buffer to mark them in is `flyspell-large-region-buffer'."
 ;;*---------------------------------------------------------------------*/
 (defun flyspell-process-localwords (misspellings-buffer)
   (let (localwords
+        (case-fold-search nil)
         (ispell-casechars (ispell-get-casechars)))
     ;; Get localwords from the original buffer
     (save-excursion