lisp/help-fns.el (describe-symbol): Don't silently do nothing

1 files changed, 2 insertions, 0 deletions

diff --git a/lisp/help-fns.el b/lisp/help-fns.el
index a4a3bb07bde..1c2c110262d 100644
--- a/lisp/help-fns.el
+++ b/lisp/help-fns.el
@@ -1986,6 +1986,8 @@ current buffer and the selected frame, respectively."
                                  (cons name (buffer-string))))
                              describe-symbol-backends))))
              (single (null (cdr docs))))
+        (when (null docs)               ; Don't silently do nothing.
+          (user-error "Unknown symbol: %S" symbol))
         (while (cdr docs)
           (goto-char (point-min))
           (let ((inhibit-read-only t)