diff --git a/src/runtime-three/runtime-host.ts b/src/runtime-three/runtime-host.ts
index 27e2796e..0e34ab5f 100644
--- a/src/runtime-three/runtime-host.ts
+++ b/src/runtime-three/runtime-host.ts
@@ -252,7 +252,8 @@ interface RuntimeTerrainRenderChunkObjects {
 interface RuntimeTerrainRenderObjects {
   group: Group;
   chunks: RuntimeTerrainRenderChunkObjects[];
-  material: Material;
+  detailMaterial: Material;
+  distantMaterial: Material;
 }
 
 function createRuntimeGeometryBrush(brush: RuntimeBoxBrushInstance): Brush {