diff --git a/crates/bevy_ecs/src/hierarchy.rs b/crates/bevy_ecs/src/hierarchy.rs
index 53be7fc80b..6fd66b0bb6 100644
--- a/crates/bevy_ecs/src/hierarchy.rs
+++ b/crates/bevy_ecs/src/hierarchy.rs
@@ -19,6 +19,8 @@ use crate::{
 use alloc::{format, string::String, vec::Vec};
 #[cfg(feature = "bevy_reflect")]
 use bevy_reflect::std_traits::ReflectDefault;
+#[cfg(all(feature = "serialize", feature = "bevy_reflect"))]
+use bevy_reflect::{ReflectDeserialize, ReflectSerialize};
 use core::ops::Deref;
 use core::slice;
 use disqualified::ShortName;
@@ -96,9 +98,14 @@ use log::warn;
     feature = "bevy_reflect",
     reflect(Component, PartialEq, Debug, FromWorld, Clone)
 )]
+#[cfg_attr(feature = "serialize", derive(serde::Serialize, serde::Deserialize))]
+#[cfg_attr(
+    all(feature = "serialize", feature = "bevy_reflect"),
+    reflect(Serialize, Deserialize)
+)]
 #[relationship(relationship_target = Children)]
 #[doc(alias = "IsChild", alias = "Parent")]
-pub struct ChildOf(pub Entity);
+pub struct ChildOf(#[entities] pub Entity);
 
 impl ChildOf {
     /// The parent entity of this child entity.