diff --git a/__mocks__/vuepress-theme-without-index/package.json b/__mocks__/vuepress-theme-without-index/package.json
index b31f1346..a67c4956 100644
--- a/__mocks__/vuepress-theme-without-index/package.json
+++ b/__mocks__/vuepress-theme-without-index/package.json
@@ -1,4 +1,4 @@
 {
-    "name": "vuepress-theme-without-index",
-    "main": "Layout.vue"
+  "name": "vuepress-theme-without-index",
+  "main": "Layout.vue"
 }
diff --git a/packages/@vuepress/core/lib/node/__tests__/prepare/fixtures/docs-dep-theme-without-index/.vuepress/config.js b/packages/@vuepress/core/lib/node/__tests__/prepare/fixtures/docs-dep-theme-without-index/.vuepress/config.js
index d2d07ae0..81f0fb39 100644
--- a/packages/@vuepress/core/lib/node/__tests__/prepare/fixtures/docs-dep-theme-without-index/.vuepress/config.js
+++ b/packages/@vuepress/core/lib/node/__tests__/prepare/fixtures/docs-dep-theme-without-index/.vuepress/config.js
@@ -1,5 +1,5 @@
 module.exports = {
-    title: 'Hello VuePress',
-    description: '# Hello, VuePress!',
-    theme: 'vuepress-theme-without-index'
-  }
+  title: 'Hello VuePress',
+  description: '# Hello, VuePress!',
+  theme: 'vuepress-theme-without-index'
+}