diff --git a/lisp/comint.el b/lisp/comint.el
index 092902d865..b6098f449d 100644
--- a/lisp/comint.el
+++ b/lisp/comint.el
@@ -365,7 +365,7 @@ comint-process-echoes
 ;; See ert test `comint-test-password-regexp'.
 (defcustom comint-password-prompt-regexp
   (concat
-   "\\(^ *\\|"
+   "\\(^ *\\|
"
    (regexp-opt
     '("Enter" "enter" "Enter same" "enter same" "Enter the" "enter the"
       "Enter Auth" "enter auth" "Old" "old" "New" "new" "'s" "login"