diff --git a/libadwaita/src/alert_dialog.rs b/libadwaita/src/alert_dialog.rs
index 45923b2972ebf7784b1e7a40622b04fcb2dc5fb4..8f689860ad48d5ab5d75cb7b4127b5680636a239 100644
--- a/libadwaita/src/alert_dialog.rs
+++ b/libadwaita/src/alert_dialog.rs
@@ -36,7 +36,7 @@ pub trait AlertDialogExtManual: sealed::Sealed + IsA<AlertDialog> + 'static {
     #[doc(alias = "adw_alert_dialog_choose")]
     fn choose<P: FnOnce(glib::GString) + 'static>(
         self,
-        parent: &impl IsA<gtk::Widget>,
+        parent: Option<&impl IsA<gtk::Widget>>,
         cancellable: Option<&impl IsA<gio::Cancellable>>,
         callback: P,
     ) {
@@ -72,7 +72,7 @@ pub trait AlertDialogExtManual: sealed::Sealed + IsA<AlertDialog> + 'static {
         unsafe {
             ffi::adw_alert_dialog_choose(
                 self.upcast().into_glib_ptr(),
-                parent.as_ref().to_glib_none().0,
+                parent.map(|p| p.as_ref()).to_glib_none().0,
                 cancellable.map(|p| p.as_ref()).to_glib_none().0,
                 Some(callback),
                 Box_::into_raw(user_data) as *mut _,
@@ -82,15 +82,19 @@ pub trait AlertDialogExtManual: sealed::Sealed + IsA<AlertDialog> + 'static {
 
     fn choose_future(
         self,
-        parent: &impl IsA<gtk::Widget>,
+        parent: Option<&impl IsA<gtk::Widget>>,
     ) -> Pin<Box_<dyn std::future::Future<Output = glib::GString> + 'static>> {
-        let parent = parent.clone();
+        let parent = parent.map(ToOwned::to_owned);
         Box_::pin(gio::GioFuture::new(
             &self,
             move |obj: &Self, cancellable, send| {
-                obj.clone().choose(&parent, Some(cancellable), move |res| {
-                    send.resolve(res);
-                });
+                obj.clone().choose(
+                    parent.as_ref().map(::std::borrow::Borrow::borrow),
+                    Some(cancellable),
+                    move |res| {
+                        send.resolve(res);
+                    },
+                );
             },
         ))
     }