1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/help.el b/lisp/help.el
index 7c3e94f8f0c..5911ec205fd 100644
--- a/lisp/help.el
+++ b/lisp/help.el
@@ -96,6 +96,7 @@
 (define-key help-mode-map "\C-c\C-c" 'help-follow)
 (define-key help-mode-map "\t" 'help-next-ref)
 (define-key help-mode-map [backtab] 'help-previous-ref)
+(define-key help-mode-map [(shift tab)] 'help-previous-ref)
 ;; Documentation only, since we use minor-mode-overriding-map-alist.
 (define-key help-mode-map "\r" 'help-follow)