diff --git a/resources/assets/vue/components/settings/elements/PostcodeSectionComponent.vue b/resources/assets/vue/components/settings/elements/PostcodeSectionComponent.vue
index 31e1a96e..c70ddaa5 100644
--- a/resources/assets/vue/components/settings/elements/PostcodeSectionComponent.vue
+++ b/resources/assets/vue/components/settings/elements/PostcodeSectionComponent.vue
@@ -31,7 +31,7 @@
                 <div class="col">
                     <list-component :key="key" section="allPostcodesSection" :endpoint="route('api.address.district.list')" :options="options">
                         <template slot="list" slot-scope="{data}">
-                            <list-postcode-component :data="item" :searchValue="submittedPostcode" v-for="item in data.postcodeArray"></list-postcode-component>
+                            <list-postcode-component :data="item" :searchValue="submittedPostcode" v-for="(item, index) in data.postcodeArray" v-bind:key="index"></list-postcode-component>
                         </template>
                     </list-component>
                 </div>