diff --git a/test/lisp/dired-aux-tests.el b/test/lisp/dired-aux-tests.el
index 374164f1f9b..69fc95ba552 100644
--- a/test/lisp/dired-aux-tests.el
+++ b/test/lisp/dired-aux-tests.el
@@ -64,7 +64,7 @@
 
 (ert-deftest dired-test-bug28834 ()
   "test for https://debbugs.gnu.org/28834 ."
-  (let (from to-cp to-mv)
+  (let (to-cp to-mv)
     ;; `dired-create-destination-dirs' set to 'always.
     (with-dired-bug28834-test
      'always nil