diff --git a/lisp/minibuffer.el b/lisp/minibuffer.el
index e5b1029c01..105e7f36e5 100644
--- a/lisp/minibuffer.el
+++ b/lisp/minibuffer.el
@@ -164,6 +164,7 @@ complete-with-action
    ((functionp table) (funcall table string pred action))
    ((eq (car-safe action) 'boundaries) nil)
    ((eq action 'metadata) nil)
+   ((eq action 'identity) table)
    (t
     (funcall
      (cond