diff --git a/web/middleware/redirect.js b/web/middleware/redirect.js
index ccf9eb0e0..11a13596c 100644
--- a/web/middleware/redirect.js
+++ b/web/middleware/redirect.js
@@ -55,7 +55,7 @@ async function redirectMiddleware(ctx, next) {
     } else {
       redirectUrl += openQuery;
     }
-
+    ctx.status = 301;
     ctx.redirect(redirectUrl);
     return;
   }