diff --git a/lib/prepare.js b/lib/prepare.js
index 3fd7b45376..00c65973fe 100644
--- a/lib/prepare.js
+++ b/lib/prepare.js
@@ -230,7 +230,7 @@ async function genRoutesFile ({ siteData: { pages }, sourceDir, pageFiles }) {
   function genRoute ({ path: pagePath }, index) {
     const file = pageFiles[index]
     const filePath = path.resolve(sourceDir, file)
-    const code = `
+    let code = `
     {
       path: ${JSON.stringify(pagePath)},
       component: Theme,
@@ -241,6 +241,14 @@ async function genRoutesFile ({ siteData: { pages }, sourceDir, pageFiles }) {
         })
       }
     }`
+
+    if (/\/$/.test(pagePath)) {
+      code += `,{
+        path: ${JSON.stringify(pagePath + 'index.html')},
+        redirect: ${JSON.stringify(pagePath)}
+      }`
+    }
+
     return code
   }