diff --git a/crates/loro-internal/src/delta/tree.rs b/crates/loro-internal/src/delta/tree.rs
index 12c2d040..87177784 100644
--- a/crates/loro-internal/src/delta/tree.rs
+++ b/crates/loro-internal/src/delta/tree.rs
@@ -22,8 +22,8 @@ pub struct TreeDiffItem {
 
 #[derive(Debug, Clone, Copy, Serialize)]
 pub enum TreeExternalDiff {
-    Create(TreeParentId),
-    Move(TreeParentId),
+    Create(Option<TreeID>),
+    Move(Option<TreeID>),
     Delete,
 }
 
@@ -33,11 +33,11 @@ impl TreeDiffItem {
         match item.action {
             TreeInternalDiff::Create(p) => Some(TreeDiffItem {
                 target,
-                action: TreeExternalDiff::Create(p),
+                action: TreeExternalDiff::Create(p.into_node().ok()),
             }),
             TreeInternalDiff::Move(p) => Some(TreeDiffItem {
                 target,
-                action: TreeExternalDiff::Move(p),
+                action: TreeExternalDiff::Move(p.into_node().ok()),
             }),
             TreeInternalDiff::Delete(_) | TreeInternalDiff::UnCreate => Some(TreeDiffItem {
                 target,
@@ -147,10 +147,10 @@ impl<'a> TreeValue<'a> {
             match d.action {
                 TreeExternalDiff::Create(parent) => {
                     self.create_target(target);
-                    self.mov(target, parent.as_node().copied());
+                    self.mov(target, parent);
                 }
                 TreeExternalDiff::Delete => self.delete_target(target),
-                TreeExternalDiff::Move(parent) => self.mov(target, parent.as_node().copied()),
+                TreeExternalDiff::Move(parent) => self.mov(target, parent),
             }
         }
     }
diff --git a/crates/loro-internal/src/handler.rs b/crates/loro-internal/src/handler.rs
index bd204df5..5ae6b832 100644
--- a/crates/loro-internal/src/handler.rs
+++ b/crates/loro-internal/src/handler.rs
@@ -1249,7 +1249,7 @@ impl TreeHandler {
         let tree_id = TreeID::from_id(txn.next_id());
         let event_hint = TreeDiffItem {
             target: tree_id,
-            action: TreeExternalDiff::Create(TreeParentId::from_tree_id(parent)),
+            action: TreeExternalDiff::Create(parent),
         };
         txn.apply_local_op(
             self.container_idx,
@@ -1279,7 +1279,7 @@ impl TreeHandler {
             crate::op::RawOpContent::Tree(TreeOp { target, parent }),
             EventHint::Tree(TreeDiffItem {
                 target,
-                action: TreeExternalDiff::Move(TreeParentId::from_tree_id(parent)),
+                action: TreeExternalDiff::Move(parent),
             }),
             &self.state,
         )
diff --git a/crates/loro-internal/src/state/tree_state.rs b/crates/loro-internal/src/state/tree_state.rs
index 68a073ac..6338b250 100644
--- a/crates/loro-internal/src/state/tree_state.rs
+++ b/crates/loro-internal/src/state/tree_state.rs
@@ -298,7 +298,7 @@ impl ContainerState for TreeState {
             };
             let diff = TreeDiffItem {
                 target: node.id,
-                action: TreeExternalDiff::Create(parent),
+                action: TreeExternalDiff::Create(parent.into_node().ok()),
             };
             diffs.push(diff);
             q.extend(node.children);
diff --git a/crates/loro-internal/src/value.rs b/crates/loro-internal/src/value.rs
index 4a552ab1..53bf72e0 100644
--- a/crates/loro-internal/src/value.rs
+++ b/crates/loro-internal/src/value.rs
@@ -342,16 +342,14 @@ pub mod wasm {
                 match diff.action {
                     TreeExternalDiff::Create(p) => {
                         js_sys::Reflect::set(&obj, &"action".into(), &"create".into()).unwrap();
-                        js_sys::Reflect::set(&obj, &"parent".into(), &p.to_tree_id().into())
-                            .unwrap();
+                        js_sys::Reflect::set(&obj, &"parent".into(), &p.into()).unwrap();
                     }
                     TreeExternalDiff::Delete => {
                         js_sys::Reflect::set(&obj, &"action".into(), &"delete".into()).unwrap();
                     }
                     TreeExternalDiff::Move(p) => {
                         js_sys::Reflect::set(&obj, &"action".into(), &"move".into()).unwrap();
-                        js_sys::Reflect::set(&obj, &"parent".into(), &p.to_tree_id().into())
-                            .unwrap();
+                        js_sys::Reflect::set(&obj, &"parent".into(), &p.into()).unwrap();
                     }
                 }
                 array.push(&obj);