diff --git a/luisa_compute/src/runtime.rs b/luisa_compute/src/runtime.rs
index d51f7d4..33f74e5 100644
--- a/luisa_compute/src/runtime.rs
+++ b/luisa_compute/src/runtime.rs
@@ -340,9 +340,7 @@ impl Device {
             raw_window_handle::RawWindowHandle::Orbital(_) => todo!(),
             raw_window_handle::RawWindowHandle::Xlib(h) => h.window as u64,
             raw_window_handle::RawWindowHandle::Xcb(h) => h.window.get() as u64,
-            raw_window_handle::RawWindowHandle::Wayland(h) => {
-                h.surface.as_ptr() as u64
-            }
+            raw_window_handle::RawWindowHandle::Wayland(h) => h.surface.as_ptr() as u64,
             raw_window_handle::RawWindowHandle::Drm(_) => todo!(),
             raw_window_handle::RawWindowHandle::Gbm(_) => todo!(),
             raw_window_handle::RawWindowHandle::Win32(h) => h.hwnd.get() as u64,
@@ -832,6 +830,7 @@ impl Drop for SwapchainHandle {
     }
 }
 
+#[derive(Clone)]
 pub struct Swapchain {
     pub(crate) handle: Arc<SwapchainHandle>,
     #[allow(dead_code)]