--- a/lisp/files.el
+++ b/lisp/files.el
@@ -1428,7 +1428,7 @@ automatically choosing a major mode, use \\[find-file-literally]."
                         (confirm-nonexistent-file-or-buffer)))
   (let ((value (find-file-noselect filename nil nil wildcards)))
     (if (listp value)
-	(mapcar 'switch-to-buffer (nreverse value))
+	(mapc 'switch-to-buffer (nreverse value))
       (switch-to-buffer value))))
 
 (defun find-file-other-window (filename &optional wildcards)
@@ -1450,8 +1450,9 @@ expand wildcards (if any) and visit multiple files."
     (if (listp value)
 	(progn
 	  (setq value (nreverse value))
-	  (cons (switch-to-buffer-other-window (car value))
-		(mapcar 'switch-to-buffer (cdr value))))
+	  (switch-to-buffer-other-window (car value))
+	  (mapc 'switch-to-buffer (cdr value))
+	  value)
       (switch-to-buffer-other-window value))))
 
 (defun find-file-other-frame (filename &optional wildcards)
@@ -1473,8 +1474,9 @@ expand wildcards (if any) and visit multiple files."
     (if (listp value)
 	(progn
 	  (setq value (nreverse value))
-	  (cons (switch-to-buffer-other-frame (car value))
-		(mapcar 'switch-to-buffer (cdr value))))
+	  (switch-to-buffer-other-frame (car value))
+	  (mapc 'switch-to-buffer (cdr value))
+	  value)
       (switch-to-buffer-other-frame value))))
 
 (defun find-file-existing (filename)