diff --git a/backend/ent/schema/item.go b/backend/ent/schema/item.go
index b9fcd9a..25531d0 100644
--- a/backend/ent/schema/item.go
+++ b/backend/ent/schema/item.go
@@ -94,6 +94,9 @@ func (Item) Fields() []ent.Field {
 // Edges of the Item.
 func (Item) Edges() []ent.Edge {
 	return []ent.Edge{
+		edge.To("children", Item.Type).
+			From("parent").
+			Unique(),
 		edge.From("group", Group.Type).
 			Ref("items").
 			Required().
diff --git a/backend/ent/schema/location.go b/backend/ent/schema/location.go
index 74e0abb..e8f2237 100644
--- a/backend/ent/schema/location.go
+++ b/backend/ent/schema/location.go
@@ -27,6 +27,9 @@ func (Location) Fields() []ent.Field {
 // Edges of the Location.
 func (Location) Edges() []ent.Edge {
 	return []ent.Edge{
+		edge.To("children", Location.Type).
+			From("parent").
+			Unique(),
 		edge.From("group", Group.Type).
 			Ref("locations").
 			Unique().