diff --git a/etc/NEWS b/etc/NEWS
index d5c329bb8ba8850a499d0a49009474546394eec7..101736b818c6db683e54e2abe4948ee580fce4aa 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -90,6 +90,9 @@ types any more.  Add -DUSE_LISP_UNION_TYPE if you want union types.
 
 * Changes in Emacs 21.4
 
+** New command quail-show-key shows what key to type to input a
+character at point.
+
 ** Convenient commands to switch buffers in a cyclic order are C-x <left>
 (prev-buffer) and C-x <right> (next-buffer).