diff --git a/website/public/assets/js/cart.js b/website/public/assets/js/cart.js
index 588c7e1..f1010f2 100644
--- a/website/public/assets/js/cart.js
+++ b/website/public/assets/js/cart.js
@@ -388,6 +388,11 @@
 
   // Initialize when DOM is ready
   const initializeComponents = () => {
+    // Skip if shop-system.js already initialized
+    if (window.ShopSystem?.isInitialized) {
+      console.log("[cart.js] Skipping initialization - shop-system.js already loaded");
+      return;
+    }
     console.log("[cart.js] Initializing ShoppingCart and Wishlist components");
     new ShoppingCart();
     new Wishlist();
diff --git a/website/public/assets/js/shop-system.js b/website/public/assets/js/shop-system.js
index 154bb19..e62ad4e 100644
--- a/website/public/assets/js/shop-system.js
+++ b/website/public/assets/js/shop-system.js
@@ -700,6 +700,9 @@
 
   console.log("[ShopSystem] AppState compatibility layer installed");
 
+  // Mark as initialized to prevent cart.js duplicate initialization
+  window.ShopSystem.isInitialized = true;
+
   // Setup dropdowns when DOM is ready
   if (document.readyState === "loading") {
     document.addEventListener("DOMContentLoaded", () => {