diff --git a/src/map.rs b/src/map.rs
index 05e01d2..89b8f35 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -220,8 +220,8 @@ fn spawn_colliders<D: 'static + Clone + Default + Send + Sync>(
                 let position =
                     Isometry2::new(Vector2::new(room.center().x(), room.center().y()), 0.);
                 let aabb = shape.raw.compute_aabb(&position);
-                let id = commands
-                    .spawn((
+                commands.entity(map_entity).with_children(|parent| {
+                    parent.spawn((
                         TransformBundle::from_transform(Transform::from_xyz(
                             position.translation.x,
                             position.translation.y,
@@ -232,9 +232,8 @@ fn spawn_colliders<D: 'static + Clone + Default + Send + Sync>(
                         ActiveEvents::COLLISION_EVENTS,
                         Area(aabb),
                         Zone,
-                    ))
-                    .id();
-                commands.entity(map_entity).push_children(&[id]);
+                    ));
+                });
             }
         }
     }
@@ -280,13 +279,12 @@ fn spawn_portals<D: 'static + Clone + Default + Send + Sync>(
                 }
             }
             for (x, y) in portals {
-                let portal = commands
-                    .spawn(PortalBundle {
+                commands.entity(map_entity).with_children(|parent| {
+                    parent.spawn(PortalBundle {
                         transform: Transform::from_translation(Vec3::new(x, y, 0.)),
                         ..default()
-                    })
-                    .id();
-                commands.entity(map_entity).push_children(&[portal]);
+                    });
+                });
             }
         }
     }