diff --git a/spatial/wit/wired-scene/gltf.wit b/spatial/wit/wired-scene/gltf.wit
index 55667b9..cb58201 100644
--- a/spatial/wit/wired-scene/gltf.wit
+++ b/spatial/wit/wired-scene/gltf.wit
@@ -129,6 +129,8 @@ interface scene {
   resource scene {
     constructor();
 
+    id: func() -> u32;
+
     nodes: func() -> list<node>;
     add-node: func(value: borrow<node>);
     remove-node: func(value: borrow<node>);