diff --git a/lisp/isearch.el b/lisp/isearch.el
index 5efac4c78f..d3c0f261ba 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -2561,7 +2561,9 @@ isearch-mouse-2
 is bound to outside of Isearch."
   (interactive "e")
   (let ((w (posn-window (event-start click)))
-        (binding (let ((overriding-terminal-local-map nil))
+        (binding (let ((overriding-terminal-local-map nil)
+                       ;; Key search now depends on mode (bug#47755).
+                       (isearch-mode nil))
                    (key-binding (this-command-keys-vector) t))))
     (if (and (window-minibuffer-p w)
 	     (not (minibuffer-window-active-p w))) ; in echo area