diff --git a/lisp/isearch.el b/lisp/isearch.el
index a86678572c..a1e3fe2c3f 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -513,7 +513,7 @@ isearch-tmm-menubar
     (call-interactively command)))
 
 (defvar isearch-menu-bar-commands
-  '(isearch-tmm-menubar menu-bar-open mouse-minor-mode-menu)
+  '(isearch-tmm-menubar tmm-menubar menu-bar-open mouse-minor-mode-menu)
   "List of commands that can open a menu during Isearch.")
 
 (defvar isearch-menu-bar-yank-map
@@ -787,7 +787,6 @@ isearch-mode-map
 
     (define-key map [menu-bar search-menu]
       (list 'menu-item "Isearch" isearch-menu-bar-map))
-    (define-key map [remap tmm-menubar] 'isearch-tmm-menubar)
 
     map)
   "Keymap for `isearch-mode'.")
diff --git a/lisp/tmm.el b/lisp/tmm.el
index e49246a5c4..2040f52270 100644
--- a/lisp/tmm.el
+++ b/lisp/tmm.el
@@ -56,12 +56,14 @@ tmm-menubar
 `tty-menu-open-use-tmm' to a non-nil value."
   (interactive)
   (run-hooks 'menu-bar-update-hook)
-  (let ((menu-bar (menu-bar-keymap))
-        (menu-bar-item-cons (and x-position
-                                 (menu-bar-item-at-x x-position))))
-    (tmm-prompt menu-bar
-                nil
-                (and menu-bar-item-cons (car menu-bar-item-cons)))))
+  (if isearch-mode
+      (isearch-tmm-menubar)
+    (let ((menu-bar (menu-bar-keymap))
+          (menu-bar-item-cons (and x-position
+                                   (menu-bar-item-at-x x-position))))
+      (tmm-prompt menu-bar
+                  nil
+                  (and menu-bar-item-cons (car menu-bar-item-cons))))))
 
 ;;;###autoload
 (defun tmm-menubar-mouse (event)