diff --git a/components/Common.vue b/components/Common.vue
index 8b78494..cd92598 100644
--- a/components/Common.vue
+++ b/components/Common.vue
@@ -109,8 +109,8 @@ export default {
       this.isHasKey =  true
     }
     
-    const {keys} = keyPage
-    this.isHasKey = keys.indexOf(sessionStorage.getItem('key')) > -1
+    const keys = keyPage.keys
+    this.isHasKey = keys && keys.indexOf(sessionStorage.getItem('key')) > -1
   },
 
   methods: {
diff --git a/components/Password.vue b/components/Password.vue
index 5bf029c..902dec2 100644
--- a/components/Password.vue
+++ b/components/Password.vue
@@ -67,8 +67,8 @@ export default {
     },
     isHasKey () {
       const keyPage = this.$site.themeConfig.keyPage
-      const {keys} = keyPage
-      return keys.indexOf(sessionStorage.getItem('key')) > -1
+      const keys = keyPage.keys
+      return keys && keys.indexOf(sessionStorage.getItem('key')) > -1
     },
     inputFocus () {
       this.warningText = 'Input Your Key'