diff --git a/lisp/progmodes/which-func.el b/lisp/progmodes/which-func.el
index 4388b0e7de0..abe25f2c633 100644
--- a/lisp/progmodes/which-func.el
+++ b/lisp/progmodes/which-func.el
@@ -216,7 +216,7 @@ It creates the Imenu index for the buffer, if necessary."
      (setq which-func-mode nil))))
 
 (defun which-func-update ()
-  "Update the Which-Function mode display for all windows."
+  "Update the Which-Function mode display in the current window."
   ;; (walk-windows 'which-func-update-1 nil 'visible))
   (let ((non-essential t))
     (which-func-update-1 (selected-window))))