Index: sbbs.el
==================================================================
--- sbbs.el
+++ sbbs.el
@@ -709,10 +709,11 @@
 
 (defvar sbbs-read-mode-map
   (let ((map (make-sparse-keymap)))
     (suppress-keymap map)
     (define-key map (kbd "<tab>") #'forward-button)
+    (define-key map (kbd "TAB") #'forward-button)
     (define-key map (kbd "<backtab>") #'backward-button)
     (define-key map (kbd "r") #'sbbs-read-reply)
     (define-key map (kbd "n") #'sbbs-read-next)
     (define-key map (kbd "p") #'sbbs-read-previous)
     (define-key map (kbd "a") #'sbbs-show-pop)