diff --git a/src/js/product.ts b/src/js/product.ts
index 60ad1c899..7f995824f 100644
--- a/src/js/product.ts
+++ b/src/js/product.ts
@@ -11,34 +11,15 @@ export default () => {
   const {prestashop, Theme: {events}} = window;
 
   const initProductSlide = () => {
-    const imagesCarousel = document.querySelector(SelectorsMap.product.carousel);
-
-    if (imagesCarousel) {
-      imagesCarousel.addEventListener('slide.bs.carousel', onProductSlide);
-    }
+    document.querySelector(SelectorsMap.product.carousel)?.addEventListener('slide.bs.carousel', onProductSlide);
   };
 
   function onProductSlide(event: ProductSlideEvent): void {
-    const thumbnails = document.querySelectorAll(SelectorsMap.product.thumbnail);
-
-    thumbnails.forEach((e: Element) => {
-      e.classList.remove('active');
-    });
-
-    const activeThumbnail = document.querySelector(SelectorsMap.product.activeThumbail(event.to));
-
-    if (activeThumbnail) {
-      activeThumbnail.classList.add('active');
-    }
+    document.querySelectorAll(SelectorsMap.product.thumbnail).forEach((e) => e.classList.remove('active'));
+    document.querySelector(SelectorsMap.product.activeThumbail(event.to))?.classList.add('active');
   }
 
   initProductSlide();
-
-  prestashop.on(events.updatedProduct, () => {
-    initProductSlide();
-  });
-
-  prestashop.on(events.quickviewOpened, () => {
-    initProductSlide();
-  });
+  prestashop.on(events.updatedProduct, initProductSlide);
+  prestashop.on(events.quickviewOpened, initProductSlide);
 };