       (local-set-key "\C-i" 'gud-gdb-complete-command)
 
       ;; Add the buffer-displaying commands to the Gud buffer,
-      (define-key (current-local-map) "\C-x\C-a" rdebug-common-map)
-      (rdebug-populate-secondary-buffer-map rdebug-common-map t)
+      (let ((prefix-map (make-sparse-keymap)))
+        (define-key (current-local-map) gud-key-prefix prefix-map)
+        (rdebug-populate-secondary-buffer-map-plain prefix-map))
 
       (rdebug-populate-common-keys (current-local-map))
       (rdebug-populate-debugger-menu (current-local-map))

  (define-key map "p" 'gud-print)
  (define-key map "q" 'rdebug-quit)
  (define-key map "r" 'gud-run)
  (define-key map "s" 'gud-step)
  ;; (define-key map "t" 'gud-tbreak)
  ;; Returns the menu.
  (if no-menu
      nil
    (rdebug-populate-common-keys map)
    (rdebug-populate-debugger-menu map)))


(defun rdebug-display-breakpoints-buffer ()

;; -- help

(defvar rdebug-secondary-window-help-mode-map
  (let ((map (make-sparse-keymap)))
    (suppress-keymap map)
    (rdebug-populate-secondary-buffer-map map)
    map)
  "Keymap used in the help buffer in the `rdebug' Ruby debugger.")

