1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/menu-bar.el b/lisp/menu-bar.el
index 068a8956f87..cf0f3b174d5 100644
--- a/lisp/menu-bar.el
+++ b/lisp/menu-bar.el
@@ -416,7 +416,7 @@ turn off menu bars; otherwise, turn on menu bars."
    ;; Apply it to existing frames.
    (let ((frames (frame-list)))
      (while frames
-       (let ((height (cdr (assq 'height (frame-parameters (selected-frame))))))
+       (let ((height (cdr (assq 'height (frame-parameters (car frames))))))
          (modify-frame-parameters (car frames)
                                   (list (cons 'menu-bar-lines
                                             (if menu-bar-mode 1 0))))