diff --git a/which-key.el b/which-key.el
index 92d82f044d0..3ef4615dc19 100644
--- a/which-key.el
+++ b/which-key.el
@@ -818,7 +818,7 @@ value of `which-key-show-prefix'.  SEL-WIN-WIDTH is passed to
           pages (reverse pages)
           first-page (car pages)
           first-page-str (concat prefix-string (car first-page)))
-    (cond (no-room
+    (cond ((<= (car keys-per-page) 0) ; check first page
            (message "%s-  which-key can't show keys: Settings and/or frame size are too restrictive." prefix-keys)
            (cons 0 0))
           (max-pages-reached