diff --git a/lisp/emacs-lisp/seq.el b/lisp/emacs-lisp/seq.el
index 5c89d2b3007..2b4330c1a3c 100644
--- a/lisp/emacs-lisp/seq.el
+++ b/lisp/emacs-lisp/seq.el
@@ -479,7 +479,7 @@ If no element is found, return nil."
 
 (cl-defgeneric seq-random-elt (sequence)
   "Return a random element from SEQUENCE.
-Return nil if SEQUENCE is nil."
+Signal an error if SEQUENCE is empty."
   (if (seq-empty-p sequence)
       (error "Sequence cannot be empty")
     (seq-elt sequence (random (seq-length sequence)))))