diff --git a/src/components/three/ModelViewer.tsx b/src/components/three/ModelViewer.tsx
index a6d95f7..ff58083 100644
--- a/src/components/three/ModelViewer.tsx
+++ b/src/components/three/ModelViewer.tsx
@@ -759,6 +759,7 @@ function VisibilityApplier() {
   useEffect(() => {
     const st = useModelStore.getState();
     const { hiddenElementKeys, isolatedElementKeys, selectedElementKeys } = st;
+    let touched = 0, highlighted = 0;
 
     scene.traverse((root) => {
       const modelId = root.userData?.modelId as string | undefined;