diff --git a/packages/engine/Source/Scene/VoxelRenderResources.js b/packages/engine/Source/Scene/VoxelRenderResources.js
index 7c3fa4e8c747..407eab42a74c 100644
--- a/packages/engine/Source/Scene/VoxelRenderResources.js
+++ b/packages/engine/Source/Scene/VoxelRenderResources.js
@@ -126,7 +126,6 @@ function VoxelRenderResources(primitive) {
 
   const shapeType = primitive._provider.shape;
   if (shapeType === "BOX") {
-    shaderBuilder.addDefine("SHAPE_BOX", undefined, ShaderDestination.FRAGMENT);
     shaderBuilder.addFragmentLines([
       convertUvToBox,
       IntersectBox,