1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/mouse.el b/lisp/mouse.el
index edf75753062..7d94b678ca2 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -757,6 +757,7 @@ If the click is in the echo area, display the `*Messages*' buffer."
     (if (and (window-minibuffer-p w)
              (not (minibuffer-window-active-p w)))
         (save-excursion
+          ;; Swallow the up-event.
           (read-event)
           (set-buffer "*Messages*")
           (goto-char (point-max))