diff --git a/src/fmg-components/cart/cart.vue b/src/fmg-components/cart/cart.vue
index 4d5f19f76..06fa922ef 100644
--- a/src/fmg-components/cart/cart.vue
+++ b/src/fmg-components/cart/cart.vue
@@ -302,9 +302,9 @@ export default {
         },
         lineItemsWithoutRecal() {
             if (!this.lineItems || this.lineItems.length < 1) return;
-            const lineItemsCopy = this.lineItems;
+            const lineItemsCopy = deepClone(this.lineItems);
             lineItemsCopy.supportingItems = baseMixin.methods.filterOutRecalibration(
-                this.lineItems.supportingItems
+                lineItemsCopy.supportingItems
             );
             return lineItemsCopy;
         },