(help-make-xrefs): Default info references to an

`(emacs)' prefix.

1 files changed, 5 insertions, 1 deletions

diff --git a/lisp/help.el b/lisp/help.el
index 9a52c8e23c6..2120a2ce9f6 100644
--- a/lisp/help.el
+++ b/lisp/help.el
@@ -1004,7 +1004,11 @@ that."
               ;; Info references
               (save-excursion
                 (while (re-search-forward help-xref-info-regexp nil t)
-                  (help-xref-button 1 #'info (match-string 1))))
+                  (let ((data (match-string 1)))
+                    (save-match-data
+                      (unless (string-match "^([^)]+)" data)
+                        (setq data (concat "(emacs)" data))))
+                    (help-xref-button 1 #'info data))))
               ;; An obvious case of a key substitution:
               (save-excursion              
                 (while (re-search-forward