diff --git a/eldoc-frame.el b/eldoc-frame.el
index 3024d4e..92b625e 100644
--- a/eldoc-frame.el
+++ b/eldoc-frame.el
@@ -378,10 +378,10 @@ window is on the right. Return ‘left’ if there is only one window in the fra
 
 (defun eldoc-frame--maybe-hide-frame ()
   "Hide ElDoc child frame if it is appropriate to do so.
-The child frame will be hidden if it is currently visible, the child frame is
-not currently selected, and the point has moved or `eldoc-frame-mode' is no
-longer active."
+The child frame will be hidden if it is live and visible, is not currently
+selected, and the point has moved or `eldoc-frame-mode' is no longer active."
   (when (and eldoc-frame--frame
+             (frame-live-p eldoc-frame--frame)
              (frame-visible-p eldoc-frame--frame)
              (not (eq (selected-frame) eldoc-frame--frame))
              (or (not (eq (point) eldoc-frame--last-point))