diff --git a/src/renderer/src/components/KeyDetail.vue b/src/renderer/src/components/KeyDetail.vue
index d02354d..3c72b6f 100644
--- a/src/renderer/src/components/KeyDetail.vue
+++ b/src/renderer/src/components/KeyDetail.vue
@@ -173,7 +173,7 @@ async function refreshKey() {
       <ReJsonEditor v-else-if="['ReJSON-RL', 'json', 'tair-json'].includes(keyStore.selectedType || '')" />
       <div v-else class="unsupported">
         <el-icon><Warning /></el-icon>
-        <p>{{ t('key.unsupported', { type: keyStore.selectedType }) }}</p>
+        <p>{{ t('key.unsupported', { type: keyStore.selectedType ?? 'unknown' }) }}</p>
       </div>
     </div>