2 files changed, 8 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 5169fde1a88..25c88c48996 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2014-02-08  Juri Linkov  <juri@jurta.org>
+
+        * isearch.el (isearch-quote-char): Check character validity
+        like in `quoted-insert' (bug#16677).
+
 2014-02-08  Lars Ingebrigtsen  <larsi@gnus.org>
 
         * files.el (find-file-visit-truename): Doc clarification (bug#14697).
diff --git a/lisp/isearch.el b/lisp/isearch.el
index c8dc89cb821..86a0d8fc141 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -2301,6 +2301,9 @@ before the command is executed globally with terminated Isearch."
 With argument, add COUNT copies of the character."
   (interactive "p")
   (let ((char (read-quoted-char (isearch-message t))))
+    (unless (characterp char)
+      (user-error "%s is not a valid character"
+                  (key-description (vector char))))
     ;; Assume character codes 0200 - 0377 stand for characters in some
     ;; single-byte character set, and convert them to Emacs
     ;; characters.