diff --git a/lisp/tramp-sh.el b/lisp/tramp-sh.el
index c304fcb..46f467d 100644
--- a/lisp/tramp-sh.el
+++ b/lisp/tramp-sh.el
@@ -658,7 +658,7 @@ foreach $f (@files) {
  }
 }
 print \"ok\\n\"
-' \"$1\" 2>/dev/null"
+' \"$1\""
   "Perl script to produce output suitable for use with
 `file-name-all-completions' on the remote file system.  Escape
 sequence %s is replaced with name of Perl binary.  This string is