diff --git a/uidev/src/testbed/testbed_generic.rs b/uidev/src/testbed/testbed_generic.rs
index b3e60af..408c121 100644
--- a/uidev/src/testbed/testbed_generic.rs
+++ b/uidev/src/testbed/testbed_generic.rs
@@ -8,9 +8,9 @@ use glam::Vec2;
 use wgui::{
 	assets::AssetPath,
 	components::{
-		Component,
 		button::{ButtonClickCallback, ComponentButton},
 		checkbox::ComponentCheckbox,
+		Component,
 	},
 	drawing::Color,
 	event::StyleSetRequest,
@@ -90,7 +90,7 @@ impl TestbedGeneric {
 		)?;
 
 		let extra = ParseDocumentExtra {
-			on_custom_attribs: Some(Box::new(move |par| {
+			on_custom_attribs: Some(Rc::new(move |par| {
 				let Some(my_custom_value) = par.get_value("_my_custom") else {
 					return;
 				};
diff --git a/wgui/src/parser/mod.rs b/wgui/src/parser/mod.rs
index 57cf2a5..0e3625a 100644
--- a/wgui/src/parser/mod.rs
+++ b/wgui/src/parser/mod.rs
@@ -1069,9 +1069,9 @@ impl CustomAttribsInfoOwned {
 	}
 }
 
-pub type OnCustomAttribsFunc = Box<dyn Fn(CustomAttribsInfo)>;
+pub type OnCustomAttribsFunc = Rc<dyn Fn(CustomAttribsInfo)>;
 
-#[derive(Default)]
+#[derive(Default, Clone)]
 pub struct ParseDocumentExtra {
 	pub on_custom_attribs: Option<OnCustomAttribsFunc>, // all attributes with '_' character prepended
 	pub dev_mode: bool,
diff --git a/wlx-overlay-s/src/gui/panel/mod.rs b/wlx-overlay-s/src/gui/panel/mod.rs
index eabfcfa..c1bdbcf 100644
--- a/wlx-overlay-s/src/gui/panel/mod.rs
+++ b/wlx-overlay-s/src/gui/panel/mod.rs
@@ -113,7 +113,7 @@ impl<S: 'static> GuiPanel<S> {
                 AssetPath::FileOrBuiltIn(path)
             },
             extra: wgui::parser::ParseDocumentExtra {
-                on_custom_attribs: Some(Box::new({
+                on_custom_attribs: Some(Rc::new({
                     let custom_elems = custom_elems.clone();
                     move |attribs| {
                         custom_elems.borrow_mut().push(attribs.to_owned());