1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/isearch.el b/lisp/isearch.el
index b762884945e..9f8ba8d8d7b 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -218,7 +218,7 @@ Default value, nil, means edit the string instead."
 
 (autoload 'character-fold-to-regexp "character-fold")
 
-(defcustom search-default-regexp-mode nil
+(defcustom search-default-regexp-mode #'character-fold-to-regexp
   "Default mode to use when starting isearch.
 Value is nil, t, or a function.