diff --git a/src/components/nav.vue b/src/components/nav.vue
index 6d3d964..ba5479c 100644
--- a/src/components/nav.vue
+++ b/src/components/nav.vue
@@ -5,7 +5,7 @@
       返回首页
     </div>
     <div class="name flex-center">{{ title }}</div>
-    <div class="type">【{{ type }}】</div>
+    <div class="type" v-if="type">【{{ type }}】</div>
   </div>
 </template>