diff --git a/src/pages/09_task-order/expansion/DocumentExpansion.vue b/src/pages/09_task-order/expansion/DocumentExpansion.vue
index d949fb7a..cb646968 100644
--- a/src/pages/09_task-order/expansion/DocumentExpansion.vue
+++ b/src/pages/09_task-order/expansion/DocumentExpansion.vue
@@ -42,6 +42,7 @@ const contactTel = defineModel<string>('contactTel');
         class="col-md-4 col-12"
         :label="`${$t('taskOrder.issueBranch')}${$i18n.locale === 'tha' ? $t('taskOrder.title') : ''}`"
         v-model:value="registeredBranchId"
+        auto-select-on-single
       />
       <SelectInstitution
         :readonly
@@ -51,6 +52,7 @@ const contactTel = defineModel<string>('contactTel');
         v-model:value="institutionId"
         :disabled="taskListGroup"
         :params="{ payload: { group: institutionGroup } }"
+        auto-select-on-single
       />
       <DatePicker
         :label="$t('taskOrder.issueDate')"