diff --git a/lisp/textmodes/flyspell.el b/lisp/textmodes/flyspell.el
index a6bd082af38..7c1e1566a9f 100644
--- a/lisp/textmodes/flyspell.el
+++ b/lisp/textmodes/flyspell.el
@@ -1509,7 +1509,7 @@ The buffer to mark them in is `flyspell-large-region-buffer'."
     (if flyspell-issue-message-flag (message "Checking region..."))
     (set-buffer curbuf)
     (ispell-check-version)
-    (let ((c (apply 'call-process-region beg
+    (let ((c (apply 'ispell-call-process-region beg
 		    end
 		    ispell-program-name
 		    nil