diff --git a/shell/components/formatter/SecretData.vue b/shell/components/formatter/SecretData.vue
index 8e10edc9c8..e2e694533c 100644
--- a/shell/components/formatter/SecretData.vue
+++ b/shell/components/formatter/SecretData.vue
@@ -43,7 +43,7 @@ export default {
 
 <template>
   <div v-if="isTLS">
-    <t k="secret.certificate.cn" /> {{ cn }} <span v-if="row.unrepeatedSans.length">{{ t('secret.certificate.plusMore', {n:row.unrepeatedSans.length}) }}</span><br>
+    <t k="secret.certificate.cn" /> {{ cn }} <span v-if="row.unrepeatedSans && row.unrepeatedSans.length">{{ t('secret.certificate.plusMore', {n:row.unrepeatedSans.length}) }}</span><br>
     <t k="secret.certificate.expires" />: <DateComponent
       :class="dateClass"
       :value="expiration"