1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/eshell/em-unix.el b/lisp/eshell/em-unix.el
index 0a41b04875e..b9fce8a55a7 100644
--- a/lisp/eshell/em-unix.el
+++ b/lisp/eshell/em-unix.el
@@ -955,7 +955,7 @@ Show wall-clock time elapsed during execution of COMMAND.")
                       (not eshell-in-subcommand-p))))
         (throw 'eshell-replace-command
                (eshell-parse-command "*diff" orig-args))
-      (setq args (eshell-copy-list orig-args))
+      (setq args (copy-sequence orig-args))
       (if (< (length args) 2)
           (throw 'eshell-replace-command
                  (eshell-parse-command "*diff" orig-args)))