diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/AddPersons.vue b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/AddPersons.vue
index 05f622d00..84984fc01 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/AddPersons.vue
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/AddPersons.vue
@@ -1,6 +1,6 @@
 <template>
-   <a class="btn" :class="getClassButton" :title="$t(buttonTitle)" @click="openModal">
-      <span v-if="displayTextButton">{{ $t(buttonTitle) }}</span>
+   <a class="btn" :class="getClassButton" :title="$t(buttonTitle || '')" @click="openModal">
+      <span v-if="displayTextButton">{{ $t(buttonTitle || '') }}</span>
    </a>
 
   <teleport to="body">