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-rw-r--r--lisp/help-fns.el3
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/help-fns.el b/lisp/help-fns.el
index f6ad2f87921..eec03cc14a5 100644
--- a/lisp/help-fns.el
+++ b/lisp/help-fns.el
@@ -113,7 +113,8 @@ With ARG, you are asked to choose which language."
(setq val (completing-read (if fn
(format "Describe function (default %s): " fn)
"Describe function: ")
- obarray 'fboundp t nil nil (symbol-name fn)))
+ obarray 'fboundp t nil nil
+ (and fn (symbol-name fn))))
(list (if (equal val "")
fn (intern val)))))
(if (null function)