diff --git a/client/src/plugins/environment/systems/voxels/chunk.rs b/client/src/plugins/environment/systems/voxels/chunk.rs
index 23b7ef3..812809b 100644
--- a/client/src/plugins/environment/systems/voxels/chunk.rs
+++ b/client/src/plugins/environment/systems/voxels/chunk.rs
@@ -2,13 +2,6 @@ use bevy::prelude::*;
 use crate::plugins::environment::systems::voxels::structure::{ChunkKey, SparseVoxelOctree, Voxel, CHUNK_POW, CHUNK_SIZE};
 
 /// Component attached to the entity that owns the mesh of one chunk.
-#[derive(Component)]
-pub struct Chunk {
-    pub key: ChunkKey,
-    pub voxels: Vec<(IVec3, Voxel)>,   // local coords 0‥15
-    pub dirty: bool,
-}
-
 
 impl SparseVoxelOctree {
     pub fn chunk_has_any_voxel(&self, key: ChunkKey) -> bool {
diff --git a/client/src/plugins/environment/systems/voxels/culling.rs b/client/src/plugins/environment/systems/voxels/culling.rs
index 1c908b0..6f98290 100644
--- a/client/src/plugins/environment/systems/voxels/culling.rs
+++ b/client/src/plugins/environment/systems/voxels/culling.rs
@@ -1,8 +1,7 @@
 use std::collections::{HashMap, VecDeque};
 use bevy::prelude::*;
-use crate::plugins::environment::systems::voxels::chunk::Chunk;
 use crate::plugins::environment::systems::voxels::helper::world_to_chunk;
-use crate::plugins::environment::systems::voxels::structure::{ChunkCullingCfg, ChunkKey, SparseVoxelOctree, SpawnedChunks, CHUNK_SIZE};
+use crate::plugins::environment::systems::voxels::structure::*;
 
 
 /// despawn (or hide) every chunk entity whose centre is farther away than the
diff --git a/client/src/plugins/environment/systems/voxels/render_chunks.rs b/client/src/plugins/environment/systems/voxels/render_chunks.rs
index 8fe45ac..9cedb11 100644
--- a/client/src/plugins/environment/systems/voxels/render_chunks.rs
+++ b/client/src/plugins/environment/systems/voxels/render_chunks.rs
@@ -5,7 +5,6 @@ use bevy::render::mesh::Mesh;
 use big_space::prelude::GridCell;
 use itertools::Itertools;
 use crate::plugins::big_space::big_space_plugin::RootGrid;
-use crate::plugins::environment::systems::voxels::chunk::Chunk;
 use crate::plugins::environment::systems::voxels::meshing::mesh_chunk;
 use crate::plugins::environment::systems::voxels::structure::*;
 /// rebuilds meshes only for chunks flagged dirty by the octree
diff --git a/client/src/plugins/environment/systems/voxels/structure.rs b/client/src/plugins/environment/systems/voxels/structure.rs
index 618e902..731afff 100644
--- a/client/src/plugins/environment/systems/voxels/structure.rs
+++ b/client/src/plugins/environment/systems/voxels/structure.rs
@@ -88,6 +88,14 @@ pub struct AABB {
 pub const CHUNK_SIZE: i32 = 16;         // 16×16×16 voxels
 pub const CHUNK_POW : u32 = 4;
 
+#[derive(Component)]
+pub struct Chunk {
+    pub key: ChunkKey,
+    pub voxels: Vec<(IVec3, Voxel)>,   // local coords 0‥15
+    pub dirty: bool,
+}
+
+
 #[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
 pub struct ChunkKey(pub i32, pub i32, pub i32);