diff --git a/app/three/utils/build-coordinate-grid.ts b/app/three/utils/build-coordinate-grid.ts
index abf686c..77ee8ab 100644
--- a/app/three/utils/build-coordinate-grid.ts
+++ b/app/three/utils/build-coordinate-grid.ts
@@ -48,13 +48,13 @@ export function buildCoordinateGrid(extent: Extent) {
 
   const annotations = [];
   for (let i = 0; i < xPairs.length - 1; i++) {
-    const [start, _] = xPairs[i];
+    const [start] = xPairs[i];
     const label = createLabel(`${start.x.toFixed(0)}m`, start, Orientation.X);
     annotations.push(label);
   }
 
   for (let i = 0; i < yPairs.length - 1; i++) {
-    const [start, _] = yPairs[i];
+    const [start] = yPairs[i];
     const label = createLabel(`${start.y.toFixed(0)}m`, start, Orientation.Y);
     annotations.push(label);
   }
diff --git a/app/three/utils/build-scene.ts b/app/three/utils/build-scene.ts
index e4872fc..5a91dc9 100644
--- a/app/three/utils/build-scene.ts
+++ b/app/three/utils/build-scene.ts
@@ -121,7 +121,7 @@ function onWindowResize(container: HTMLElement) {
 
 function animate() {
   // Set rotation of axes according to camera rotation
-  let rot = new Euler();
+  const rot = new Euler();
   rot.x = -camera.rotation.x;
   rot.y = camera.rotation.y;
   rot.z = -camera.rotation.z;