diff --git a/examples/form.rs b/examples/form.rs
index b7a6c93b..f9dbc307 100644
--- a/examples/form.rs
+++ b/examples/form.rs
@@ -20,7 +20,7 @@ fn app() -> Element {
                         id: "check1",
                         name: "check1",
                         value: "check1",
-                        checked: "{checkbox_checked}",
+                        checked: Some("").filter(|_| checkbox_checked()),
                         oninput: move |ev| {
                             dbg!(ev);
                             checkbox_checked.set(!checkbox_checked());