diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index c867ec12a..04d1505b5 100755
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -2,6 +2,7 @@
 
 	* org.el (org-store-link): Use buffer name as link description in
 	w3-mode buffers.
+	(org-ido-switchb): Fix argument bug for completion.
 
 	* org-remember.el (org-remember-apply-template): Set local
 	variable `auto-save-visited-file-name' instead of global one.
diff --git a/lisp/org.el b/lisp/org.el
index 6cd61663a..b12404e1e 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -12773,7 +12773,7 @@ With two prefix arguments, restrict available buffers to agenda files."
                      (t                 (org-buffer-list)))))
     (switch-to-buffer
      (org-ido-completing-read "Org buffer: "
-                              (mapcar 'buffer-name blist)
+                              (mapcar 'list (mapcar 'buffer-name blist))
                               nil t))))
 
 (defun org-buffer-list (&optional predicate exclude-tmp)