diff --git a/src/fmg-components/add-vaps-modal-buttons/add-vaps-modal-buttons.vue b/src/fmg-components/add-vaps-modal-buttons/add-vaps-modal-buttons.vue
index edfac624e..09c7dcdb4 100644
--- a/src/fmg-components/add-vaps-modal-buttons/add-vaps-modal-buttons.vue
+++ b/src/fmg-components/add-vaps-modal-buttons/add-vaps-modal-buttons.vue
@@ -42,17 +42,15 @@ export default {
         isDisplayed() {
             return this.showAddRainDefense || this.showAddWipers;
         },
-        showAddRainDefense() {
-            const rainDefenseIndex = this.cart.findIndex((vap) => {
+        showAddRainDefense() { // if it's not found in the cart
+            return !this.cart.some((vap) => {
                 return vap.partType === "RAIN DEFENSE";
             });
-            return rainDefenseIndex > -1 ? false : true;
         },
-        showAddWipers() {
-            const rainDefenseIndex = this.cart.findIndex((vap) => {
+        showAddWipers() { // if it's not found in the cart
+            return !this.cart.some((vap) => {
                 return vap.partType.includes(" WIPER");
             });
-            return rainDefenseIndex > -1 ? false : true;
         },
         rainDefensePrice() {
             const lineItem = this.rainDefenseItem;